Home / 10,615,006.80-15,899,171.04-8,772,489.72

Finding the Fourth Proportional to 10,615,006.80, 15,899,171.04 and 8,772,489.72

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Solution

The fourth proportional to 10,615,006.80, 15,899,171.04 and 8,772,489.72 is: 13,139,446.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,615,006.80 : 15,899,171.04 = 8,772,489.72 : x
  2. Step 2: Convert to fraction form
    10,615,006.80/15,899,171.04 = 8,772,489.72/x
  3. Step 3: Cross multiply
    10,615,006.80x = 15,899,171.04 × 8,772,489.72
  4. Step 4: Simplify right side
    10,615,006.80x = 139,475,314,504,921.72
  5. Step 5: Solve for x
    x = 139,475,314,504,921.72/10,615,006.80
  6. Step 6: Final answer
    x = 13,139,446.55

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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.