Home / 20,500,636.28-28,291,468.56-11,333,869.52

Finding the Fourth Proportional to 20,500,636.28, 28,291,468.56 and 11,333,869.52

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Solution

The fourth proportional to 20,500,636.28, 28,291,468.56 and 11,333,869.52 is: 15,641,066.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,500,636.28 : 28,291,468.56 = 11,333,869.52 : x
  2. Step 2: Convert to fraction form
    20,500,636.28/28,291,468.56 = 11,333,869.52/x
  3. Step 3: Cross multiply
    20,500,636.28x = 28,291,468.56 × 11,333,869.52
  4. Step 4: Simplify right side
    20,500,636.28x = 320,651,813,188,222.25
  5. Step 5: Solve for x
    x = 320,651,813,188,222.25/20,500,636.28
  6. Step 6: Final answer
    x = 15,641,066.39

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1.5x scale

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.