Home / 21,170,258.34-29,213,200.17-11,876,557.38

Finding the Fourth Proportional to 21,170,258.34, 29,213,200.17 and 11,876,557.38

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Solution

The fourth proportional to 21,170,258.34, 29,213,200.17 and 11,876,557.38 is: 16,388,663.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,170,258.34 : 29,213,200.17 = 11,876,557.38 : x
  2. Step 2: Convert to fraction form
    21,170,258.34/29,213,200.17 = 11,876,557.38/x
  3. Step 3: Cross multiply
    21,170,258.34x = 29,213,200.17 × 11,876,557.38
  4. Step 4: Simplify right side
    21,170,258.34x = 346,952,248,072,430.81
  5. Step 5: Solve for x
    x = 346,952,248,072,430.81/21,170,258.34
  6. Step 6: Final answer
    x = 16,388,663.87

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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.