Home / 21,516,101.20-32,274,151.80-7,869,221.20

Finding the Fourth Proportional to 21,516,101.20, 32,274,151.80 and 7,869,221.20

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Solution

The fourth proportional to 21,516,101.20, 32,274,151.80 and 7,869,221.20 is: 11,803,831.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,516,101.20 : 32,274,151.80 = 7,869,221.20 : x
  2. Step 2: Convert to fraction form
    21,516,101.20/32,274,151.80 = 7,869,221.20/x
  3. Step 3: Cross multiply
    21,516,101.20x = 32,274,151.80 × 7,869,221.20
  4. Step 4: Simplify right side
    21,516,101.20x = 253,972,439,556,578.16
  5. Step 5: Solve for x
    x = 253,972,439,556,578.16/21,516,101.20
  6. Step 6: Final answer
    x = 11,803,831.80

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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.