Home / 6,642,775.20-9,964,162.80-5,036,642.40

Finding the Fourth Proportional to 6,642,775.20, 9,964,162.80 and 5,036,642.40

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Solution

The fourth proportional to 6,642,775.20, 9,964,162.80 and 5,036,642.40 is: 7,554,963.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,642,775.20 : 9,964,162.80 = 5,036,642.40 : x
  2. Step 2: Convert to fraction form
    6,642,775.20/9,964,162.80 = 5,036,642.40/x
  3. Step 3: Cross multiply
    6,642,775.20x = 9,964,162.80 × 5,036,642.40
  4. Step 4: Simplify right side
    6,642,775.20x = 50,185,924,838,982.73
  5. Step 5: Solve for x
    x = 50,185,924,838,982.73/6,642,775.20
  6. Step 6: Final answer
    x = 7,554,963.60

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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.