Home / 426,096,312.10-639,144,468.15-409,374,801.70

Finding the Fourth Proportional to 426,096,312.10, 639,144,468.15 and 409,374,801.70

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Solution

The fourth proportional to 426,096,312.10, 639,144,468.15 and 409,374,801.70 is: 614,062,202.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    426,096,312.10 : 639,144,468.15 = 409,374,801.70 : x
  2. Step 2: Convert to fraction form
    426,096,312.10/639,144,468.15 = 409,374,801.70/x
  3. Step 3: Cross multiply
    426,096,312.10x = 639,144,468.15 × 409,374,801.70
  4. Step 4: Simplify right side
    426,096,312.10x = 261,649,639,906,558,208
  5. Step 5: Solve for x
    x = 261,649,639,906,558,208/426,096,312.10
  6. Step 6: Final answer
    x = 614,062,202.55

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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.