Home / 18,797,830.22-28,191,275.21-7,280,728.74

Finding the Fourth Proportional to 18,797,830.22, 28,191,275.21 and 7,280,728.74

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Solution

The fourth proportional to 18,797,830.22, 28,191,275.21 and 7,280,728.74 is: 10,918,974.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,797,830.22 : 28,191,275.21 = 7,280,728.74 : x
  2. Step 2: Convert to fraction form
    18,797,830.22/28,191,275.21 = 7,280,728.74/x
  3. Step 3: Cross multiply
    18,797,830.22x = 28,191,275.21 × 7,280,728.74
  4. Step 4: Simplify right side
    18,797,830.22x = 205,253,027,656,898.34
  5. Step 5: Solve for x
    x = 205,253,027,656,898.34/18,797,830.22
  6. Step 6: Final answer
    x = 10,918,974.44

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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.