Home / 21,870,147.90-32,805,221.85-11,666,480.70

Finding the Fourth Proportional to 21,870,147.90, 32,805,221.85 and 11,666,480.70

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Solution

The fourth proportional to 21,870,147.90, 32,805,221.85 and 11,666,480.70 is: 17,499,721.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,870,147.90 : 32,805,221.85 = 11,666,480.70 : x
  2. Step 2: Convert to fraction form
    21,870,147.90/32,805,221.85 = 11,666,480.70/x
  3. Step 3: Cross multiply
    21,870,147.90x = 32,805,221.85 × 11,666,480.70
  4. Step 4: Simplify right side
    21,870,147.90x = 382,721,487,572,243.31
  5. Step 5: Solve for x
    x = 382,721,487,572,243.31/21,870,147.90
  6. Step 6: Final answer
    x = 17,499,721.05

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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.