Home / 15,423,190.88-21,279,139.80-8,895,945.20

Finding the Fourth Proportional to 15,423,190.88, 21,279,139.80 and 8,895,945.20

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Solution

The fourth proportional to 15,423,190.88, 21,279,139.80 and 8,895,945.20 is: 12,273,599.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,423,190.88 : 21,279,139.80 = 8,895,945.20 : x
  2. Step 2: Convert to fraction form
    15,423,190.88/21,279,139.80 = 8,895,945.20/x
  3. Step 3: Cross multiply
    15,423,190.88x = 21,279,139.80 × 8,895,945.20
  4. Step 4: Simplify right side
    15,423,190.88x = 189,298,061,563,938.94
  5. Step 5: Solve for x
    x = 189,298,061,563,938.94/15,423,190.88
  6. Step 6: Final answer
    x = 12,273,599.09

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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.