Home / 21,173,905.86-29,203,516.22-15,315,516.17

Finding the Fourth Proportional to 21,173,905.86, 29,203,516.22 and 15,315,516.17

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Solution

The fourth proportional to 21,173,905.86, 29,203,516.22 and 15,315,516.17 is: 21,123,496.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,173,905.86 : 29,203,516.22 = 15,315,516.17 : x
  2. Step 2: Convert to fraction form
    21,173,905.86/29,203,516.22 = 15,315,516.17/x
  3. Step 3: Cross multiply
    21,173,905.86x = 29,203,516.22 × 15,315,516.17
  4. Step 4: Simplify right side
    21,173,905.86x = 447,266,924,888,267.25
  5. Step 5: Solve for x
    x = 447,266,924,888,267.25/21,173,905.86
  6. Step 6: Final answer
    x = 21,123,496.43

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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.