Home / 30,108,028.80-45,162,043.20-9,910,646.40

Finding the Fourth Proportional to 30,108,028.80, 45,162,043.20 and 9,910,646.40

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Solution

The fourth proportional to 30,108,028.80, 45,162,043.20 and 9,910,646.40 is: 14,865,969.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,108,028.80 : 45,162,043.20 = 9,910,646.40 : x
  2. Step 2: Convert to fraction form
    30,108,028.80/45,162,043.20 = 9,910,646.40/x
  3. Step 3: Cross multiply
    30,108,028.80x = 45,162,043.20 × 9,910,646.40
  4. Step 4: Simplify right side
    30,108,028.80x = 447,585,040,856,724.50
  5. Step 5: Solve for x
    x = 447,585,040,856,724.50/30,108,028.80
  6. Step 6: Final answer
    x = 14,865,969.60

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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.