Home / 20,221,262.10-30,331,893.15-13,418,817.30

Finding the Fourth Proportional to 20,221,262.10, 30,331,893.15 and 13,418,817.30

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Solution

The fourth proportional to 20,221,262.10, 30,331,893.15 and 13,418,817.30 is: 20,128,225.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,221,262.10 : 30,331,893.15 = 13,418,817.30 : x
  2. Step 2: Convert to fraction form
    20,221,262.10/30,331,893.15 = 13,418,817.30/x
  3. Step 3: Cross multiply
    20,221,262.10x = 30,331,893.15 × 13,418,817.30
  4. Step 4: Simplify right side
    20,221,262.10x = 407,018,132,542,971.50
  5. Step 5: Solve for x
    x = 407,018,132,542,971.50/20,221,262.10
  6. Step 6: Final answer
    x = 20,128,225.95

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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.