Home / 20,215,445.30-30,302,500.80-9,964,538.90

Finding the Fourth Proportional to 20,215,445.30, 30,302,500.80 and 9,964,538.90

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Solution

The fourth proportional to 20,215,445.30, 30,302,500.80 and 9,964,538.90 is: 14,936,621.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,215,445.30 : 30,302,500.80 = 9,964,538.90 : x
  2. Step 2: Convert to fraction form
    20,215,445.30/30,302,500.80 = 9,964,538.90/x
  3. Step 3: Cross multiply
    20,215,445.30x = 30,302,500.80 × 9,964,538.90
  4. Step 4: Simplify right side
    20,215,445.30x = 301,950,447,988,881.12
  5. Step 5: Solve for x
    x = 301,950,447,988,881.12/20,215,445.30
  6. Step 6: Final answer
    x = 14,936,621.16

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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.