Home / 18,985,130.40-28,470,697.20-9,397,322.40

Finding the Fourth Proportional to 18,985,130.40, 28,470,697.20 and 9,397,322.40

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Solution

The fourth proportional to 18,985,130.40, 28,470,697.20 and 9,397,322.40 is: 14,092,519.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,985,130.40 : 28,470,697.20 = 9,397,322.40 : x
  2. Step 2: Convert to fraction form
    18,985,130.40/28,470,697.20 = 9,397,322.40/x
  3. Step 3: Cross multiply
    18,985,130.40x = 28,470,697.20 × 9,397,322.40
  4. Step 4: Simplify right side
    18,985,130.40x = 267,548,320,541,177.28
  5. Step 5: Solve for x
    x = 267,548,320,541,177.28/18,985,130.40
  6. Step 6: Final answer
    x = 14,092,519.51

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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.