Home / 129,402,426.30-194,103,639.45-61,377,978.30

Finding the Fourth Proportional to 129,402,426.30, 194,103,639.45 and 61,377,978.30

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Solution

The fourth proportional to 129,402,426.30, 194,103,639.45 and 61,377,978.30 is: 92,066,967.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,402,426.30 : 194,103,639.45 = 61,377,978.30 : x
  2. Step 2: Convert to fraction form
    129,402,426.30/194,103,639.45 = 61,377,978.30/x
  3. Step 3: Cross multiply
    129,402,426.30x = 194,103,639.45 × 61,377,978.30
  4. Step 4: Simplify right side
    129,402,426.30x = 11,913,688,970,113,122
  5. Step 5: Solve for x
    x = 11,913,688,970,113,122/129,402,426.30
  6. Step 6: Final answer
    x = 92,066,967.45

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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.