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Finding the Fourth Proportional to 121,788,978.80, 182,683,468.20 and 95,960,946.20

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Solution

The fourth proportional to 121,788,978.80, 182,683,468.20 and 95,960,946.20 is: 143,941,419.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,788,978.80 : 182,683,468.20 = 95,960,946.20 : x
  2. Step 2: Convert to fraction form
    121,788,978.80/182,683,468.20 = 95,960,946.20/x
  3. Step 3: Cross multiply
    121,788,978.80x = 182,683,468.20 × 95,960,946.20
  4. Step 4: Simplify right side
    121,788,978.80x = 17,530,478,463,569,610
  5. Step 5: Solve for x
    x = 17,530,478,463,569,610/121,788,978.80
  6. Step 6: Final answer
    x = 143,941,419.30

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.