Home / 28,404,445.20-42,585,672.60-15,639,363.60

Finding the Fourth Proportional to 28,404,445.20, 42,585,672.60 and 15,639,363.60

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Solution

The fourth proportional to 28,404,445.20, 42,585,672.60 and 15,639,363.60 is: 23,447,485.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,404,445.20 : 42,585,672.60 = 15,639,363.60 : x
  2. Step 2: Convert to fraction form
    28,404,445.20/42,585,672.60 = 15,639,363.60/x
  3. Step 3: Cross multiply
    28,404,445.20x = 42,585,672.60 × 15,639,363.60
  4. Step 4: Simplify right side
    28,404,445.20x = 666,012,817,941,957.38
  5. Step 5: Solve for x
    x = 666,012,817,941,957.38/28,404,445.20
  6. Step 6: Final answer
    x = 23,447,485.53

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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.