Home / 146,653,587.20-220,148,342.40-86,103,430.40

Finding the Fourth Proportional to 146,653,587.20, 220,148,342.40 and 86,103,430.40

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Solution

The fourth proportional to 146,653,587.20, 220,148,342.40 and 86,103,430.40 is: 129,253,759.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    146,653,587.20 : 220,148,342.40 = 86,103,430.40 : x
  2. Step 2: Convert to fraction form
    146,653,587.20/220,148,342.40 = 86,103,430.40/x
  3. Step 3: Cross multiply
    146,653,587.20x = 220,148,342.40 × 86,103,430.40
  4. Step 4: Simplify right side
    146,653,587.20x = 18,955,527,477,513,772
  5. Step 5: Solve for x
    x = 18,955,527,477,513,772/146,653,587.20
  6. Step 6: Final answer
    x = 129,253,759.42

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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.