Home / 1,889,571,601.20-2,834,357,401.80-509,525,612.40

Finding the Fourth Proportional to 1,889,571,601.20, 2,834,357,401.80 and 509,525,612.40

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Solution

The fourth proportional to 1,889,571,601.20, 2,834,357,401.80 and 509,525,612.40 is: 764,288,418.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,889,571,601.20 : 2,834,357,401.80 = 509,525,612.40 : x
  2. Step 2: Convert to fraction form
    1,889,571,601.20/2,834,357,401.80 = 509,525,612.40/x
  3. Step 3: Cross multiply
    1,889,571,601.20x = 2,834,357,401.80 × 509,525,612.40
  4. Step 4: Simplify right side
    1,889,571,601.20x = 1,444,177,690,912,617,984
  5. Step 5: Solve for x
    x = 1,444,177,690,912,617,984/1,889,571,601.20
  6. Step 6: Final answer
    x = 764,288,418.60

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Double scale
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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.