Home / 129,500,502.05-178,711,157.36-70,763,165.96

Finding the Fourth Proportional to 129,500,502.05, 178,711,157.36 and 70,763,165.96

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Solution

The fourth proportional to 129,500,502.05, 178,711,157.36 and 70,763,165.96 is: 97,653,422.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,500,502.05 : 178,711,157.36 = 70,763,165.96 : x
  2. Step 2: Convert to fraction form
    129,500,502.05/178,711,157.36 = 70,763,165.96/x
  3. Step 3: Cross multiply
    129,500,502.05x = 178,711,157.36 × 70,763,165.96
  4. Step 4: Simplify right side
    129,500,502.05x = 12,646,167,286,452,708
  5. Step 5: Solve for x
    x = 12,646,167,286,452,708/129,500,502.05
  6. Step 6: Final answer
    x = 97,653,422.85

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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.