Home / 18,730,116.80-28,063,682.40-15,517,851.20

Finding the Fourth Proportional to 18,730,116.80, 28,063,682.40 and 15,517,851.20

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Solution

The fourth proportional to 18,730,116.80, 28,063,682.40 and 15,517,851.20 is: 23,250,685.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,730,116.80 : 28,063,682.40 = 15,517,851.20 : x
  2. Step 2: Convert to fraction form
    18,730,116.80/28,063,682.40 = 15,517,851.20/x
  3. Step 3: Cross multiply
    18,730,116.80x = 28,063,682.40 × 15,517,851.20
  4. Step 4: Simplify right side
    18,730,116.80x = 435,488,047,607,258.81
  5. Step 5: Solve for x
    x = 435,488,047,607,258.81/18,730,116.80
  6. Step 6: Final answer
    x = 23,250,685.10

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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.