Home / 20,668,743.30-31,003,114.95-13,488,384.90

Finding the Fourth Proportional to 20,668,743.30, 31,003,114.95 and 13,488,384.90

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Solution

The fourth proportional to 20,668,743.30, 31,003,114.95 and 13,488,384.90 is: 20,232,577.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,668,743.30 : 31,003,114.95 = 13,488,384.90 : x
  2. Step 2: Convert to fraction form
    20,668,743.30/31,003,114.95 = 13,488,384.90/x
  3. Step 3: Cross multiply
    20,668,743.30x = 31,003,114.95 × 13,488,384.90
  4. Step 4: Simplify right side
    20,668,743.30x = 418,181,947,544,544.25
  5. Step 5: Solve for x
    x = 418,181,947,544,544.25/20,668,743.30
  6. Step 6: Final answer
    x = 20,232,577.35

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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.