Home / 129,157,676.22-178,238,984.31-70,419,862.02

Finding the Fourth Proportional to 129,157,676.22, 178,238,984.31 and 70,419,862.02

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Solution

The fourth proportional to 129,157,676.22, 178,238,984.31 and 70,419,862.02 is: 97,180,168.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,157,676.22 : 178,238,984.31 = 70,419,862.02 : x
  2. Step 2: Convert to fraction form
    129,157,676.22/178,238,984.31 = 70,419,862.02/x
  3. Step 3: Cross multiply
    129,157,676.22x = 178,238,984.31 × 70,419,862.02
  4. Step 4: Simplify right side
    129,157,676.22x = 12,551,564,681,695,144
  5. Step 5: Solve for x
    x = 12,551,564,681,695,144/129,157,676.22
  6. Step 6: Final answer
    x = 97,180,168.06

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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.