Home / 20,348,423.80-28,080,818.40-11,181,657.04

Finding the Fourth Proportional to 20,348,423.80, 28,080,818.40 and 11,181,657.04

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Solution

The fourth proportional to 20,348,423.80, 28,080,818.40 and 11,181,657.04 is: 15,430,683.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,348,423.80 : 28,080,818.40 = 11,181,657.04 : x
  2. Step 2: Convert to fraction form
    20,348,423.80/28,080,818.40 = 11,181,657.04/x
  3. Step 3: Cross multiply
    20,348,423.80x = 28,080,818.40 × 11,181,657.04
  4. Step 4: Simplify right side
    20,348,423.80x = 313,990,080,639,188.25
  5. Step 5: Solve for x
    x = 313,990,080,639,188.25/20,348,423.80
  6. Step 6: Final answer
    x = 15,430,683.17

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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.