Home / 30,310,155.55-45,493,977.08-18,760,686.69

Finding the Fourth Proportional to 30,310,155.55, 45,493,977.08 and 18,760,686.69

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Solution

The fourth proportional to 30,310,155.55, 45,493,977.08 and 18,760,686.69 is: 28,158,821.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,310,155.55 : 45,493,977.08 = 18,760,686.69 : x
  2. Step 2: Convert to fraction form
    30,310,155.55/45,493,977.08 = 18,760,686.69/x
  3. Step 3: Cross multiply
    30,310,155.55x = 45,493,977.08 × 18,760,686.69
  4. Step 4: Simplify right side
    30,310,155.55x = 853,498,250,279,921.12
  5. Step 5: Solve for x
    x = 853,498,250,279,921.12/30,310,155.55
  6. Step 6: Final answer
    x = 28,158,821.19

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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.