Home / 159,487,313.28-220,092,458.40-86,148,456

Finding the Fourth Proportional to 159,487,313.28, 220,092,458.40 and 86,148,456

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Solution

The fourth proportional to 159,487,313.28, 220,092,458.40 and 86,148,456 is: 118,884,850.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,487,313.28 : 220,092,458.40 = 86,148,456 : x
  2. Step 2: Convert to fraction form
    159,487,313.28/220,092,458.40 = 86,148,456/x
  3. Step 3: Cross multiply
    159,487,313.28x = 220,092,458.40 × 86,148,456
  4. Step 4: Simplify right side
    159,487,313.28x = 18,960,625,468,404,232
  5. Step 5: Solve for x
    x = 18,960,625,468,404,232/159,487,313.28
  6. Step 6: Final answer
    x = 118,884,850.95

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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.