Home / 129,157,675.22-178,238,982.93-70,419,861.02

Finding the Fourth Proportional to 129,157,675.22, 178,238,982.93 and 70,419,861.02

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Solution

The fourth proportional to 129,157,675.22, 178,238,982.93 and 70,419,861.02 is: 97,180,166.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,157,675.22 : 178,238,982.93 = 70,419,861.02 : x
  2. Step 2: Convert to fraction form
    129,157,675.22/178,238,982.93 = 70,419,861.02/x
  3. Step 3: Cross multiply
    129,157,675.22x = 178,238,982.93 × 70,419,861.02
  4. Step 4: Simplify right side
    129,157,675.22x = 12,551,564,406,276,752
  5. Step 5: Solve for x
    x = 12,551,564,406,276,752/129,157,675.22
  6. Step 6: Final answer
    x = 97,180,166.68

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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.