Home / 21,305,061.20-31,970,713.80-9,180,333.20

Finding the Fourth Proportional to 21,305,061.20, 31,970,713.80 and 9,180,333.20

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Solution

The fourth proportional to 21,305,061.20, 31,970,713.80 and 9,180,333.20 is: 13,776,154.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,305,061.20 : 31,970,713.80 = 9,180,333.20 : x
  2. Step 2: Convert to fraction form
    21,305,061.20/31,970,713.80 = 9,180,333.20/x
  3. Step 3: Cross multiply
    21,305,061.20x = 31,970,713.80 × 9,180,333.20
  4. Step 4: Simplify right side
    21,305,061.20x = 293,501,805,325,838.12
  5. Step 5: Solve for x
    x = 293,501,805,325,838.12/21,305,061.20
  6. Step 6: Final answer
    x = 13,776,154.06

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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.