Home / 28,551,639.11-42,843,656.25-15,420,894.53

Finding the Fourth Proportional to 28,551,639.11, 42,843,656.25 and 15,420,894.53

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Solution

The fourth proportional to 28,551,639.11, 42,843,656.25 and 15,420,894.53 is: 23,140,090.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,551,639.11 : 42,843,656.25 = 15,420,894.53 : x
  2. Step 2: Convert to fraction form
    28,551,639.11/42,843,656.25 = 15,420,894.53/x
  3. Step 3: Cross multiply
    28,551,639.11x = 42,843,656.25 × 15,420,894.53
  4. Step 4: Simplify right side
    28,551,639.11x = 660,687,504,096,607
  5. Step 5: Solve for x
    x = 660,687,504,096,607/28,551,639.11
  6. Step 6: Final answer
    x = 23,140,090.19

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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.