Home / 145,013,449.20-217,520,173.80-83,707,465.20

Finding the Fourth Proportional to 145,013,449.20, 217,520,173.80 and 83,707,465.20

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Solution

The fourth proportional to 145,013,449.20, 217,520,173.80 and 83,707,465.20 is: 125,561,197.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,013,449.20 : 217,520,173.80 = 83,707,465.20 : x
  2. Step 2: Convert to fraction form
    145,013,449.20/217,520,173.80 = 83,707,465.20/x
  3. Step 3: Cross multiply
    145,013,449.20x = 217,520,173.80 × 83,707,465.20
  4. Step 4: Simplify right side
    145,013,449.20x = 18,208,062,378,661,452
  5. Step 5: Solve for x
    x = 18,208,062,378,661,452/145,013,449.20
  6. Step 6: Final answer
    x = 125,561,197.80

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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.