Home / 6,665,467.20-9,998,200.80-4,397,985.60

Finding the Fourth Proportional to 6,665,467.20, 9,998,200.80 and 4,397,985.60

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Solution

The fourth proportional to 6,665,467.20, 9,998,200.80 and 4,397,985.60 is: 6,596,978.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,665,467.20 : 9,998,200.80 = 4,397,985.60 : x
  2. Step 2: Convert to fraction form
    6,665,467.20/9,998,200.80 = 4,397,985.60/x
  3. Step 3: Cross multiply
    6,665,467.20x = 9,998,200.80 × 4,397,985.60
  4. Step 4: Simplify right side
    6,665,467.20x = 43,971,943,144,308.48
  5. Step 5: Solve for x
    x = 43,971,943,144,308.48/6,665,467.20
  6. Step 6: Final answer
    x = 6,596,978.40

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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.