Home / 20,500,633.90-28,291,465.28-11,333,867.14

Finding the Fourth Proportional to 20,500,633.90, 28,291,465.28 and 11,333,867.14

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Solution

The fourth proportional to 20,500,633.90, 28,291,465.28 and 11,333,867.14 is: 15,641,063.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,500,633.90 : 28,291,465.28 = 11,333,867.14 : x
  2. Step 2: Convert to fraction form
    20,500,633.90/28,291,465.28 = 11,333,867.14/x
  3. Step 3: Cross multiply
    20,500,633.90x = 28,291,465.28 × 11,333,867.14
  4. Step 4: Simplify right side
    20,500,633.90x = 320,651,708,481,316.19
  5. Step 5: Solve for x
    x = 320,651,708,481,316.19/20,500,633.90
  6. Step 6: Final answer
    x = 15,641,063.11

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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.