Home / 21,955,663.68-30,288,879.90-13,251,053.76

Finding the Fourth Proportional to 21,955,663.68, 30,288,879.90 and 13,251,053.76

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Solution

The fourth proportional to 21,955,663.68, 30,288,879.90 and 13,251,053.76 is: 18,280,457.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,955,663.68 : 30,288,879.90 = 13,251,053.76 : x
  2. Step 2: Convert to fraction form
    21,955,663.68/30,288,879.90 = 13,251,053.76/x
  3. Step 3: Cross multiply
    21,955,663.68x = 30,288,879.90 × 13,251,053.76
  4. Step 4: Simplify right side
    21,955,663.68x = 401,359,575,885,083.38
  5. Step 5: Solve for x
    x = 401,359,575,885,083.38/21,955,663.68
  6. Step 6: Final answer
    x = 18,280,457.46

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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.