Home / 30,309,346.80-45,464,020.20-18,216,111.60

Finding the Fourth Proportional to 30,309,346.80, 45,464,020.20 and 18,216,111.60

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Solution

The fourth proportional to 30,309,346.80, 45,464,020.20 and 18,216,111.60 is: 27,324,167.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,309,346.80 : 45,464,020.20 = 18,216,111.60 : x
  2. Step 2: Convert to fraction form
    30,309,346.80/45,464,020.20 = 18,216,111.60/x
  3. Step 3: Cross multiply
    30,309,346.80x = 45,464,020.20 × 18,216,111.60
  4. Step 4: Simplify right side
    30,309,346.80x = 828,177,665,747,854.50
  5. Step 5: Solve for x
    x = 828,177,665,747,854.50/30,309,346.80
  6. Step 6: Final answer
    x = 27,324,167.40

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Similar ratio
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1.5x scale

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.