Home / 21,121,299.59-29,142,397.76-11,953,942.34

Finding the Fourth Proportional to 21,121,299.59, 29,142,397.76 and 11,953,942.34

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Solution

The fourth proportional to 21,121,299.59, 29,142,397.76 and 11,953,942.34 is: 16,493,613.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,121,299.59 : 29,142,397.76 = 11,953,942.34 : x
  2. Step 2: Convert to fraction form
    21,121,299.59/29,142,397.76 = 11,953,942.34/x
  3. Step 3: Cross multiply
    21,121,299.59x = 29,142,397.76 × 11,953,942.34
  4. Step 4: Simplify right side
    21,121,299.59x = 348,366,542,266,903.50
  5. Step 5: Solve for x
    x = 348,366,542,266,903.50/21,121,299.59
  6. Step 6: Final answer
    x = 16,493,613.04

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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.