Home / 147,020,397.40-220,194,672.90-86,554,221.40

Finding the Fourth Proportional to 147,020,397.40, 220,194,672.90 and 86,554,221.40

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Solution

The fourth proportional to 147,020,397.40, 220,194,672.90 and 86,554,221.40 is: 129,633,566.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,020,397.40 : 220,194,672.90 = 86,554,221.40 : x
  2. Step 2: Convert to fraction form
    147,020,397.40/220,194,672.90 = 86,554,221.40/x
  3. Step 3: Cross multiply
    147,020,397.40x = 220,194,672.90 × 86,554,221.40
  4. Step 4: Simplify right side
    147,020,397.40x = 19,058,778,469,287,180
  5. Step 5: Solve for x
    x = 19,058,778,469,287,180/147,020,397.40
  6. Step 6: Final answer
    x = 129,633,566.54

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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.