Home / 6,642,785.20-9,964,177.80-2,155,061.20

Finding the Fourth Proportional to 6,642,785.20, 9,964,177.80 and 2,155,061.20

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Solution

The fourth proportional to 6,642,785.20, 9,964,177.80 and 2,155,061.20 is: 3,232,591.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,642,785.20 : 9,964,177.80 = 2,155,061.20 : x
  2. Step 2: Convert to fraction form
    6,642,785.20/9,964,177.80 = 2,155,061.20/x
  3. Step 3: Cross multiply
    6,642,785.20x = 9,964,177.80 × 2,155,061.20
  4. Step 4: Simplify right side
    6,642,785.20x = 21,473,412,966,681.36
  5. Step 5: Solve for x
    x = 21,473,412,966,681.36/6,642,785.20
  6. Step 6: Final answer
    x = 3,232,591.80

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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.