Home / 21,387,776.40-32,081,664.60-15,648,213.60

Finding the Fourth Proportional to 21,387,776.40, 32,081,664.60 and 15,648,213.60

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Solution

The fourth proportional to 21,387,776.40, 32,081,664.60 and 15,648,213.60 is: 23,472,320.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,387,776.40 : 32,081,664.60 = 15,648,213.60 : x
  2. Step 2: Convert to fraction form
    21,387,776.40/32,081,664.60 = 15,648,213.60/x
  3. Step 3: Cross multiply
    21,387,776.40x = 32,081,664.60 × 15,648,213.60
  4. Step 4: Simplify right side
    21,387,776.40x = 502,020,740,304,358.56
  5. Step 5: Solve for x
    x = 502,020,740,304,358.56/21,387,776.40
  6. Step 6: Final answer
    x = 23,472,320.40

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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.