Home / 839,811,034.20-1,259,716,551.30-431,664,346.20

Finding the Fourth Proportional to 839,811,034.20, 1,259,716,551.30 and 431,664,346.20

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Solution

The fourth proportional to 839,811,034.20, 1,259,716,551.30 and 431,664,346.20 is: 647,496,519.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    839,811,034.20 : 1,259,716,551.30 = 431,664,346.20 : x
  2. Step 2: Convert to fraction form
    839,811,034.20/1,259,716,551.30 = 431,664,346.20/x
  3. Step 3: Cross multiply
    839,811,034.20x = 1,259,716,551.30 × 431,664,346.20
  4. Step 4: Simplify right side
    839,811,034.20x = 543,774,721,514,233,216
  5. Step 5: Solve for x
    x = 543,774,721,514,233,216/839,811,034.20
  6. Step 6: Final answer
    x = 647,496,519.30

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Half scale
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Double scale
Find fourth proportional to 839,811,035.20, 1,259,716,552.80 and 431,664,347.20
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.