Home / 151,610,113.72-209,221,957.25-81,995,494.58

Finding the Fourth Proportional to 151,610,113.72, 209,221,957.25 and 81,995,494.58

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Solution

The fourth proportional to 151,610,113.72, 209,221,957.25 and 81,995,494.58 is: 113,153,782.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,610,113.72 : 209,221,957.25 = 81,995,494.58 : x
  2. Step 2: Convert to fraction form
    151,610,113.72/209,221,957.25 = 81,995,494.58/x
  3. Step 3: Cross multiply
    151,610,113.72x = 209,221,957.25 × 81,995,494.58
  4. Step 4: Simplify right side
    151,610,113.72x = 17,155,257,861,709,366
  5. Step 5: Solve for x
    x = 17,155,257,861,709,366/151,610,113.72
  6. Step 6: Final answer
    x = 113,153,782.69

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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.