Home / 8,581,336.40-12,853,342.20-5,209,662.80

Finding the Fourth Proportional to 8,581,336.40, 12,853,342.20 and 5,209,662.80

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Solution

The fourth proportional to 8,581,336.40, 12,853,342.20 and 5,209,662.80 is: 7,803,164.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,581,336.40 : 12,853,342.20 = 5,209,662.80 : x
  2. Step 2: Convert to fraction form
    8,581,336.40/12,853,342.20 = 5,209,662.80/x
  3. Step 3: Cross multiply
    8,581,336.40x = 12,853,342.20 × 5,209,662.80
  4. Step 4: Simplify right side
    8,581,336.40x = 66,961,578,715,010.16
  5. Step 5: Solve for x
    x = 66,961,578,715,010.16/8,581,336.40
  6. Step 6: Final answer
    x = 7,803,164.40

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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.