Home / 78,732,356.30-118,098,534.45-40,468,604.30

Finding the Fourth Proportional to 78,732,356.30, 118,098,534.45 and 40,468,604.30

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Solution

The fourth proportional to 78,732,356.30, 118,098,534.45 and 40,468,604.30 is: 60,702,906.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,732,356.30 : 118,098,534.45 = 40,468,604.30 : x
  2. Step 2: Convert to fraction form
    78,732,356.30/118,098,534.45 = 40,468,604.30/x
  3. Step 3: Cross multiply
    78,732,356.30x = 118,098,534.45 × 40,468,604.30
  4. Step 4: Simplify right side
    78,732,356.30x = 4,779,282,859,066,968
  5. Step 5: Solve for x
    x = 4,779,282,859,066,968/78,732,356.30
  6. Step 6: Final answer
    x = 60,702,906.45

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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.