Home / 30,340,010.80-45,510,016.20-10,145,252.80

Finding the Fourth Proportional to 30,340,010.80, 45,510,016.20 and 10,145,252.80

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Solution

The fourth proportional to 30,340,010.80, 45,510,016.20 and 10,145,252.80 is: 15,217,879.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,340,010.80 : 45,510,016.20 = 10,145,252.80 : x
  2. Step 2: Convert to fraction form
    30,340,010.80/45,510,016.20 = 10,145,252.80/x
  3. Step 3: Cross multiply
    30,340,010.80x = 45,510,016.20 × 10,145,252.80
  4. Step 4: Simplify right side
    30,340,010.80x = 461,710,619,281,095.44
  5. Step 5: Solve for x
    x = 461,710,619,281,095.44/30,340,010.80
  6. Step 6: Final answer
    x = 15,217,879.20

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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.