Home / 12,308,382.40-18,465,986.40-5,123,300.80

Finding the Fourth Proportional to 12,308,382.40, 18,465,986.40 and 5,123,300.80

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Solution

The fourth proportional to 12,308,382.40, 18,465,986.40 and 5,123,300.80 is: 7,686,371.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,308,382.40 : 18,465,986.40 = 5,123,300.80 : x
  2. Step 2: Convert to fraction form
    12,308,382.40/18,465,986.40 = 5,123,300.80/x
  3. Step 3: Cross multiply
    12,308,382.40x = 18,465,986.40 × 5,123,300.80
  4. Step 4: Simplify right side
    12,308,382.40x = 94,606,802,895,909.11
  5. Step 5: Solve for x
    x = 94,606,802,895,909.11/12,308,382.40
  6. Step 6: Final answer
    x = 7,686,371.76

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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.