Home / 12,308,622.40-18,466,346.40-5,123,540.80

Finding the Fourth Proportional to 12,308,622.40, 18,466,346.40 and 5,123,540.80

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Solution

The fourth proportional to 12,308,622.40, 18,466,346.40 and 5,123,540.80 is: 7,686,731.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,308,622.40 : 18,466,346.40 = 5,123,540.80 : x
  2. Step 2: Convert to fraction form
    12,308,622.40/18,466,346.40 = 5,123,540.80/x
  3. Step 3: Cross multiply
    12,308,622.40x = 18,466,346.40 × 5,123,540.80
  4. Step 4: Simplify right side
    12,308,622.40x = 94,613,079,207,333.11
  5. Step 5: Solve for x
    x = 94,613,079,207,333.11/12,308,622.40
  6. Step 6: Final answer
    x = 7,686,731.80

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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.