Home / 6,985,615.20-10,478,422.80-6,654,940.80

Finding the Fourth Proportional to 6,985,615.20, 10,478,422.80 and 6,654,940.80

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Solution

The fourth proportional to 6,985,615.20, 10,478,422.80 and 6,654,940.80 is: 9,982,411.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,985,615.20 : 10,478,422.80 = 6,654,940.80 : x
  2. Step 2: Convert to fraction form
    6,985,615.20/10,478,422.80 = 6,654,940.80/x
  3. Step 3: Cross multiply
    6,985,615.20x = 10,478,422.80 × 6,654,940.80
  4. Step 4: Simplify right side
    6,985,615.20x = 69,733,283,411,370.24
  5. Step 5: Solve for x
    x = 69,733,283,411,370.24/6,985,615.20
  6. Step 6: Final answer
    x = 9,982,411.20

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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.