Home / 129,298,237.20-178,435,330.56-70,564,682.88

Finding the Fourth Proportional to 129,298,237.20, 178,435,330.56 and 70,564,682.88

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Solution

The fourth proportional to 129,298,237.20, 178,435,330.56 and 70,564,682.88 is: 97,381,316.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,298,237.20 : 178,435,330.56 = 70,564,682.88 : x
  2. Step 2: Convert to fraction form
    129,298,237.20/178,435,330.56 = 70,564,682.88/x
  3. Step 3: Cross multiply
    129,298,237.20x = 178,435,330.56 × 70,564,682.88
  4. Step 4: Simplify right side
    129,298,237.20x = 12,591,232,515,554,372
  5. Step 5: Solve for x
    x = 12,591,232,515,554,372/129,298,237.20
  6. Step 6: Final answer
    x = 97,381,316.16

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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.