Home / 18,887,681.70-28,331,522.55-6,117,351.30

Finding the Fourth Proportional to 18,887,681.70, 28,331,522.55 and 6,117,351.30

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Solution

The fourth proportional to 18,887,681.70, 28,331,522.55 and 6,117,351.30 is: 9,176,026.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,887,681.70 : 28,331,522.55 = 6,117,351.30 : x
  2. Step 2: Convert to fraction form
    18,887,681.70/28,331,522.55 = 6,117,351.30/x
  3. Step 3: Cross multiply
    18,887,681.70x = 28,331,522.55 × 6,117,351.30
  4. Step 4: Simplify right side
    18,887,681.70x = 173,313,876,302,221.81
  5. Step 5: Solve for x
    x = 173,313,876,302,221.81/18,887,681.70
  6. Step 6: Final answer
    x = 9,176,026.95

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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.