Home / 20,156,598.60-30,234,897.90-11,972,407.20

Finding the Fourth Proportional to 20,156,598.60, 30,234,897.90 and 11,972,407.20

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Solution

The fourth proportional to 20,156,598.60, 30,234,897.90 and 11,972,407.20 is: 17,958,610.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,156,598.60 : 30,234,897.90 = 11,972,407.20 : x
  2. Step 2: Convert to fraction form
    20,156,598.60/30,234,897.90 = 11,972,407.20/x
  3. Step 3: Cross multiply
    20,156,598.60x = 30,234,897.90 × 11,972,407.20
  4. Step 4: Simplify right side
    20,156,598.60x = 361,984,509,309,224.81
  5. Step 5: Solve for x
    x = 361,984,509,309,224.81/20,156,598.60
  6. Step 6: Final answer
    x = 17,958,610.80

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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.