Home / 129,295,229.25-178,431,206.28-70,561,670.76

Finding the Fourth Proportional to 129,295,229.25, 178,431,206.28 and 70,561,670.76

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Solution

The fourth proportional to 129,295,229.25, 178,431,206.28 and 70,561,670.76 is: 97,377,173.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,295,229.25 : 178,431,206.28 = 70,561,670.76 : x
  2. Step 2: Convert to fraction form
    129,295,229.25/178,431,206.28 = 70,561,670.76/x
  3. Step 3: Cross multiply
    129,295,229.25x = 178,431,206.28 × 70,561,670.76
  4. Step 4: Simplify right side
    129,295,229.25x = 12,590,404,030,839,006
  5. Step 5: Solve for x
    x = 12,590,404,030,839,006/129,295,229.25
  6. Step 6: Final answer
    x = 97,377,173.96

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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.