Home / 14,508,411.78-20,021,607.55-7,981,901.10

Finding the Fourth Proportional to 14,508,411.78, 20,021,607.55 and 7,981,901.10

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Solution

The fourth proportional to 14,508,411.78, 20,021,607.55 and 7,981,901.10 is: 11,015,023.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,508,411.78 : 20,021,607.55 = 7,981,901.10 : x
  2. Step 2: Convert to fraction form
    14,508,411.78/20,021,607.55 = 7,981,901.10/x
  3. Step 3: Cross multiply
    14,508,411.78x = 20,021,607.55 × 7,981,901.10
  4. Step 4: Simplify right side
    14,508,411.78x = 159,810,491,327,113.31
  5. Step 5: Solve for x
    x = 159,810,491,327,113.31/14,508,411.78
  6. Step 6: Final answer
    x = 11,015,023.13

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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.