Home / 12,481,330.40-18,721,995.60-8,176,658.30

Finding the Fourth Proportional to 12,481,330.40, 18,721,995.60 and 8,176,658.30

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Solution

The fourth proportional to 12,481,330.40, 18,721,995.60 and 8,176,658.30 is: 12,264,987.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,481,330.40 : 18,721,995.60 = 8,176,658.30 : x
  2. Step 2: Convert to fraction form
    12,481,330.40/18,721,995.60 = 8,176,658.30/x
  3. Step 3: Cross multiply
    12,481,330.40x = 18,721,995.60 × 8,176,658.30
  4. Step 4: Simplify right side
    12,481,330.40x = 153,083,360,715,303.50
  5. Step 5: Solve for x
    x = 153,083,360,715,303.50/12,481,330.40
  6. Step 6: Final answer
    x = 12,264,987.45

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Double scale
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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.