Home / 20,687,011.68-31,009,226.10-9,177,899.07

Finding the Fourth Proportional to 20,687,011.68, 31,009,226.10 and 9,177,899.07

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Solution

The fourth proportional to 20,687,011.68, 31,009,226.10 and 9,177,899.07 is: 13,757,402.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,687,011.68 : 31,009,226.10 = 9,177,899.07 : x
  2. Step 2: Convert to fraction form
    20,687,011.68/31,009,226.10 = 9,177,899.07/x
  3. Step 3: Cross multiply
    20,687,011.68x = 31,009,226.10 × 9,177,899.07
  4. Step 4: Simplify right side
    20,687,011.68x = 284,599,547,384,609.75
  5. Step 5: Solve for x
    x = 284,599,547,384,609.75/20,687,011.68
  6. Step 6: Final answer
    x = 13,757,402.56

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.