Home / 21,101,132.10-31,651,698.15-12,598,076.10

Finding the Fourth Proportional to 21,101,132.10, 31,651,698.15 and 12,598,076.10

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Solution

The fourth proportional to 21,101,132.10, 31,651,698.15 and 12,598,076.10 is: 18,897,114.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,101,132.10 : 31,651,698.15 = 12,598,076.10 : x
  2. Step 2: Convert to fraction form
    21,101,132.10/31,651,698.15 = 12,598,076.10/x
  3. Step 3: Cross multiply
    21,101,132.10x = 31,651,698.15 × 12,598,076.10
  4. Step 4: Simplify right side
    21,101,132.10x = 398,750,501,987,929.19
  5. Step 5: Solve for x
    x = 398,750,501,987,929.19/21,101,132.10
  6. Step 6: Final answer
    x = 18,897,114.15

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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.