Home / 1,491,036,365.70-2,236,554,548.55-509,571,126.90

Finding the Fourth Proportional to 1,491,036,365.70, 2,236,554,548.55 and 509,571,126.90

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Solution

The fourth proportional to 1,491,036,365.70, 2,236,554,548.55 and 509,571,126.90 is: 764,356,690.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,491,036,365.70 : 2,236,554,548.55 = 509,571,126.90 : x
  2. Step 2: Convert to fraction form
    1,491,036,365.70/2,236,554,548.55 = 509,571,126.90/x
  3. Step 3: Cross multiply
    1,491,036,365.70x = 2,236,554,548.55 × 509,571,126.90
  4. Step 4: Simplify right side
    1,491,036,365.70x = 1,139,683,621,677,944,320
  5. Step 5: Solve for x
    x = 1,139,683,621,677,944,320/1,491,036,365.70
  6. Step 6: Final answer
    x = 764,356,690.35

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Half scale
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Double scale
Find fourth proportional to 1,491,036,366.70, 2,236,554,550.05 and 509,571,127.90
Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.