Home / 42,065,382.80-63,103,979.10-13,308,519.80

Finding the Fourth Proportional to 42,065,382.80, 63,103,979.10 and 13,308,519.80

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Solution

The fourth proportional to 42,065,382.80, 63,103,979.10 and 13,308,519.80 is: 19,964,647.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,065,382.80 : 63,103,979.10 = 13,308,519.80 : x
  2. Step 2: Convert to fraction form
    42,065,382.80/63,103,979.10 = 13,308,519.80/x
  3. Step 3: Cross multiply
    42,065,382.80x = 63,103,979.10 × 13,308,519.80
  4. Step 4: Simplify right side
    42,065,382.80x = 839,820,555,311,136.25
  5. Step 5: Solve for x
    x = 839,820,555,311,136.25/42,065,382.80
  6. Step 6: Final answer
    x = 19,964,647.87

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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.