Home / 20,386,008-28,126,356.60-11,564,006.40

Finding the Fourth Proportional to 20,386,008, 28,126,356.60 and 11,564,006.40

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Solution

The fourth proportional to 20,386,008, 28,126,356.60 and 11,564,006.40 is: 15,954,735.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,386,008 : 28,126,356.60 = 11,564,006.40 : x
  2. Step 2: Convert to fraction form
    20,386,008/28,126,356.60 = 11,564,006.40/x
  3. Step 3: Cross multiply
    20,386,008x = 28,126,356.60 × 11,564,006.40
  4. Step 4: Simplify right side
    20,386,008x = 325,253,367,731,082.25
  5. Step 5: Solve for x
    x = 325,253,367,731,082.25/20,386,008
  6. Step 6: Final answer
    x = 15,954,735.61

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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.