Home / 14,508,410.78-20,021,606.17-7,981,900.10

Finding the Fourth Proportional to 14,508,410.78, 20,021,606.17 and 7,981,900.10

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Solution

The fourth proportional to 14,508,410.78, 20,021,606.17 and 7,981,900.10 is: 11,015,021.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,508,410.78 : 20,021,606.17 = 7,981,900.10 : x
  2. Step 2: Convert to fraction form
    14,508,410.78/20,021,606.17 = 7,981,900.10/x
  3. Step 3: Cross multiply
    14,508,410.78x = 20,021,606.17 × 7,981,900.10
  4. Step 4: Simplify right side
    14,508,410.78x = 159,810,460,346,710.81
  5. Step 5: Solve for x
    x = 159,810,460,346,710.81/14,508,410.78
  6. Step 6: Final answer
    x = 11,015,021.75

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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.