Home / 20,342,321.15-30,513,481.73-13,528,066.55

Finding the Fourth Proportional to 20,342,321.15, 30,513,481.73 and 13,528,066.55

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Solution

The fourth proportional to 20,342,321.15, 30,513,481.73 and 13,528,066.55 is: 20,292,099.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,342,321.15 : 30,513,481.73 = 13,528,066.55 : x
  2. Step 2: Convert to fraction form
    20,342,321.15/30,513,481.73 = 13,528,066.55/x
  3. Step 3: Cross multiply
    20,342,321.15x = 30,513,481.73 × 13,528,066.55
  4. Step 4: Simplify right side
    20,342,321.15x = 412,788,411,515,649.19
  5. Step 5: Solve for x
    x = 412,788,411,515,649.19/20,342,321.15
  6. Step 6: Final answer
    x = 20,292,099.83

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1.5x scale

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.