Home / 21,281,613.91-31,805,810.80-15,536,446.01

Finding the Fourth Proportional to 21,281,613.91, 31,805,810.80 and 15,536,446.01

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Solution

The fourth proportional to 21,281,613.91, 31,805,810.80 and 15,536,446.01 is: 23,219,538.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,281,613.91 : 31,805,810.80 = 15,536,446.01 : x
  2. Step 2: Convert to fraction form
    21,281,613.91/31,805,810.80 = 15,536,446.01/x
  3. Step 3: Cross multiply
    21,281,613.91x = 31,805,810.80 × 15,536,446.01
  4. Step 4: Simplify right side
    21,281,613.91x = 494,149,262,219,876.50
  5. Step 5: Solve for x
    x = 494,149,262,219,876.50/21,281,613.91
  6. Step 6: Final answer
    x = 23,219,538.91

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.