Home / 147,019,991.40-220,194,063.90-86,553,815.40

Finding the Fourth Proportional to 147,019,991.40, 220,194,063.90 and 86,553,815.40

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Solution

The fourth proportional to 147,019,991.40, 220,194,063.90 and 86,553,815.40 is: 129,632,957.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,019,991.40 : 220,194,063.90 = 86,553,815.40 : x
  2. Step 2: Convert to fraction form
    147,019,991.40/220,194,063.90 = 86,553,815.40/x
  3. Step 3: Cross multiply
    147,019,991.40x = 220,194,063.90 × 86,553,815.40
  4. Step 4: Simplify right side
    147,019,991.40x = 19,058,636,358,976,404
  5. Step 5: Solve for x
    x = 19,058,636,358,976,404/147,019,991.40
  6. Step 6: Final answer
    x = 129,632,957.92

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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.