Home / 21,761,831.80-32,642,747.70-13,102,478.20

Finding the Fourth Proportional to 21,761,831.80, 32,642,747.70 and 13,102,478.20

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Solution

The fourth proportional to 21,761,831.80, 32,642,747.70 and 13,102,478.20 is: 19,653,717.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,761,831.80 : 32,642,747.70 = 13,102,478.20 : x
  2. Step 2: Convert to fraction form
    21,761,831.80/32,642,747.70 = 13,102,478.20/x
  3. Step 3: Cross multiply
    21,761,831.80x = 32,642,747.70 × 13,102,478.20
  4. Step 4: Simplify right side
    21,761,831.80x = 427,700,890,127,350.12
  5. Step 5: Solve for x
    x = 427,700,890,127,350.12/21,761,831.80
  6. Step 6: Final answer
    x = 19,653,717.30

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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.