Home / 129,473,459.78-178,673,446.18-69,934,755.61

Finding the Fourth Proportional to 129,473,459.78, 178,673,446.18 and 69,934,755.61

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Solution

The fourth proportional to 129,473,459.78, 178,673,446.18 and 69,934,755.61 is: 96,510,001.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,473,459.78 : 178,673,446.18 = 69,934,755.61 : x
  2. Step 2: Convert to fraction form
    129,473,459.78/178,673,446.18 = 69,934,755.61/x
  3. Step 3: Cross multiply
    129,473,459.78x = 178,673,446.18 × 69,934,755.61
  4. Step 4: Simplify right side
    129,473,459.78x = 12,495,483,792,594,788
  5. Step 5: Solve for x
    x = 12,495,483,792,594,788/129,473,459.78
  6. Step 6: Final answer
    x = 96,510,001.46

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.