Home / 129,024,006.40-178,053,049.60-71,077,254.40

Finding the Fourth Proportional to 129,024,006.40, 178,053,049.60 and 71,077,254.40

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Solution

The fourth proportional to 129,024,006.40, 178,053,049.60 and 71,077,254.40 is: 98,086,567.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,024,006.40 : 178,053,049.60 = 71,077,254.40 : x
  2. Step 2: Convert to fraction form
    129,024,006.40/178,053,049.60 = 71,077,254.40/x
  3. Step 3: Cross multiply
    129,024,006.40x = 178,053,049.60 × 71,077,254.40
  4. Step 4: Simplify right side
    129,024,006.40x = 12,655,521,903,115,018
  5. Step 5: Solve for x
    x = 12,655,521,903,115,018/129,024,006.40
  6. Step 6: Final answer
    x = 98,086,567.42

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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.