Home / 12,608,618.80-18,912,928.20-7,506,785.20

Finding the Fourth Proportional to 12,608,618.80, 18,912,928.20 and 7,506,785.20

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Solution

The fourth proportional to 12,608,618.80, 18,912,928.20 and 7,506,785.20 is: 11,260,177.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,608,618.80 : 18,912,928.20 = 7,506,785.20 : x
  2. Step 2: Convert to fraction form
    12,608,618.80/18,912,928.20 = 7,506,785.20/x
  3. Step 3: Cross multiply
    12,608,618.80x = 18,912,928.20 × 7,506,785.20
  4. Step 4: Simplify right side
    12,608,618.80x = 141,975,289,500,422.62
  5. Step 5: Solve for x
    x = 141,975,289,500,422.62/12,608,618.80
  6. Step 6: Final answer
    x = 11,260,177.80

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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.