Home / 15,078,989.88-20,816,233.56-9,282,740.04

Finding the Fourth Proportional to 15,078,989.88, 20,816,233.56 and 9,282,740.04

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Solution

The fourth proportional to 15,078,989.88, 20,816,233.56 and 9,282,740.04 is: 12,814,630.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,078,989.88 : 20,816,233.56 = 9,282,740.04 : x
  2. Step 2: Convert to fraction form
    15,078,989.88/20,816,233.56 = 9,282,740.04/x
  3. Step 3: Cross multiply
    15,078,989.88x = 20,816,233.56 × 9,282,740.04
  4. Step 4: Simplify right side
    15,078,989.88x = 193,231,684,749,403.72
  5. Step 5: Solve for x
    x = 193,231,684,749,403.72/15,078,989.88
  6. Step 6: Final answer
    x = 12,814,630.57

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1.5x scale

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.