Home / 129,490,537.86-178,691,624.78-70,755,219.27

Finding the Fourth Proportional to 129,490,537.86, 178,691,624.78 and 70,755,219.27

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Solution

The fourth proportional to 129,490,537.86, 178,691,624.78 and 70,755,219.27 is: 97,639,297.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,490,537.86 : 178,691,624.78 = 70,755,219.27 : x
  2. Step 2: Convert to fraction form
    129,490,537.86/178,691,624.78 = 70,755,219.27/x
  3. Step 3: Cross multiply
    129,490,537.86x = 178,691,624.78 × 70,755,219.27
  4. Step 4: Simplify right side
    129,490,537.86x = 12,643,365,092,667,690
  5. Step 5: Solve for x
    x = 12,643,365,092,667,690/129,490,537.86
  6. Step 6: Final answer
    x = 97,639,297.06

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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.