Home / 639,738,601.30-959,607,901.95-417,808,839.70

Finding the Fourth Proportional to 639,738,601.30, 959,607,901.95 and 417,808,839.70

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Solution

The fourth proportional to 639,738,601.30, 959,607,901.95 and 417,808,839.70 is: 626,713,259.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    639,738,601.30 : 959,607,901.95 = 417,808,839.70 : x
  2. Step 2: Convert to fraction form
    639,738,601.30/959,607,901.95 = 417,808,839.70/x
  3. Step 3: Cross multiply
    639,738,601.30x = 959,607,901.95 × 417,808,839.70
  4. Step 4: Simplify right side
    639,738,601.30x = 400,932,664,080,680,896
  5. Step 5: Solve for x
    x = 400,932,664,080,680,896/639,738,601.30
  6. Step 6: Final answer
    x = 626,713,259.55

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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.