Home / 20,592,106.60-28,420,518.18-11,427,693.16

Finding the Fourth Proportional to 20,592,106.60, 28,420,518.18 and 11,427,693.16

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Solution

The fourth proportional to 20,592,106.60, 28,420,518.18 and 11,427,693.16 is: 15,772,109.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,592,106.60 : 28,420,518.18 = 11,427,693.16 : x
  2. Step 2: Convert to fraction form
    20,592,106.60/28,420,518.18 = 11,427,693.16/x
  3. Step 3: Cross multiply
    20,592,106.60x = 28,420,518.18 × 11,427,693.16
  4. Step 4: Simplify right side
    20,592,106.60x = 324,780,961,209,241.62
  5. Step 5: Solve for x
    x = 324,780,961,209,241.62/20,592,106.60
  6. Step 6: Final answer
    x = 15,772,109.55

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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.