Home / 20,535,206.46-28,338,919.13-11,242,619.70

Finding the Fourth Proportional to 20,535,206.46, 28,338,919.13 and 11,242,619.70

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Solution

The fourth proportional to 20,535,206.46, 28,338,919.13 and 11,242,619.70 is: 15,514,998.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,535,206.46 : 28,338,919.13 = 11,242,619.70 : x
  2. Step 2: Convert to fraction form
    20,535,206.46/28,338,919.13 = 11,242,619.70/x
  3. Step 3: Cross multiply
    20,535,206.46x = 28,338,919.13 × 11,242,619.70
  4. Step 4: Simplify right side
    20,535,206.46x = 318,603,690,487,644.81
  5. Step 5: Solve for x
    x = 318,603,690,487,644.81/20,535,206.46
  6. Step 6: Final answer
    x = 15,514,998.16

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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.