Home / 539,152,040.90-808,728,061.35-517,988,879.30

Finding the Fourth Proportional to 539,152,040.90, 808,728,061.35 and 517,988,879.30

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Solution

The fourth proportional to 539,152,040.90, 808,728,061.35 and 517,988,879.30 is: 776,983,318.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    539,152,040.90 : 808,728,061.35 = 517,988,879.30 : x
  2. Step 2: Convert to fraction form
    539,152,040.90/808,728,061.35 = 517,988,879.30/x
  3. Step 3: Cross multiply
    539,152,040.90x = 808,728,061.35 × 517,988,879.30
  4. Step 4: Simplify right side
    539,152,040.90x = 418,912,142,157,148,160
  5. Step 5: Solve for x
    x = 418,912,142,157,148,160/539,152,040.90
  6. Step 6: Final answer
    x = 776,983,318.95

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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.