Home / 20,615,171.90-30,922,851.65-6,968,391.35

Finding the Fourth Proportional to 20,615,171.90, 30,922,851.65 and 6,968,391.35

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Solution

The fourth proportional to 20,615,171.90, 30,922,851.65 and 6,968,391.35 is: 10,452,618.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,615,171.90 : 30,922,851.65 = 6,968,391.35 : x
  2. Step 2: Convert to fraction form
    20,615,171.90/30,922,851.65 = 6,968,391.35/x
  3. Step 3: Cross multiply
    20,615,171.90x = 30,922,851.65 × 6,968,391.35
  4. Step 4: Simplify right side
    20,615,171.90x = 215,482,531,765,737
  5. Step 5: Solve for x
    x = 215,482,531,765,737/20,615,171.90
  6. Step 6: Final answer
    x = 10,452,618.72

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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.