Home / 8,258,343.80-12,387,515.70-5,388,562.40

Finding the Fourth Proportional to 8,258,343.80, 12,387,515.70 and 5,388,562.40

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Solution

The fourth proportional to 8,258,343.80, 12,387,515.70 and 5,388,562.40 is: 8,082,843.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,258,343.80 : 12,387,515.70 = 5,388,562.40 : x
  2. Step 2: Convert to fraction form
    8,258,343.80/12,387,515.70 = 5,388,562.40/x
  3. Step 3: Cross multiply
    8,258,343.80x = 12,387,515.70 × 5,388,562.40
  4. Step 4: Simplify right side
    8,258,343.80x = 66,750,901,330,429.68
  5. Step 5: Solve for x
    x = 66,750,901,330,429.68/8,258,343.80
  6. Step 6: Final answer
    x = 8,082,843.60

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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.