Home / 20,392,534.08-28,142,387.69-11,100,443.11

Finding the Fourth Proportional to 20,392,534.08, 28,142,387.69 and 11,100,443.11

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Solution

The fourth proportional to 20,392,534.08, 28,142,387.69 and 11,100,443.11 is: 15,318,987.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,392,534.08 : 28,142,387.69 = 11,100,443.11 : x
  2. Step 2: Convert to fraction form
    20,392,534.08/28,142,387.69 = 11,100,443.11/x
  3. Step 3: Cross multiply
    20,392,534.08x = 28,142,387.69 × 11,100,443.11
  4. Step 4: Simplify right side
    20,392,534.08x = 312,392,973,406,551.12
  5. Step 5: Solve for x
    x = 312,392,973,406,551.12/20,392,534.08
  6. Step 6: Final answer
    x = 15,318,987.44

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.