Home / 20,736,087.20-31,104,130.80-19,224,432.80

Finding the Fourth Proportional to 20,736,087.20, 31,104,130.80 and 19,224,432.80

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Solution

The fourth proportional to 20,736,087.20, 31,104,130.80 and 19,224,432.80 is: 28,836,649.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,736,087.20 : 31,104,130.80 = 19,224,432.80 : x
  2. Step 2: Convert to fraction form
    20,736,087.20/31,104,130.80 = 19,224,432.80/x
  3. Step 3: Cross multiply
    20,736,087.20x = 31,104,130.80 × 19,224,432.80
  4. Step 4: Simplify right side
    20,736,087.20x = 597,959,272,367,010.25
  5. Step 5: Solve for x
    x = 597,959,272,367,010.25/20,736,087.20
  6. Step 6: Final answer
    x = 28,836,649.20

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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.