Home / 12,866,847.40-17,756,453.42-6,986,478.28

Finding the Fourth Proportional to 12,866,847.40, 17,756,453.42 and 6,986,478.28

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Solution

The fourth proportional to 12,866,847.40, 17,756,453.42 and 6,986,478.28 is: 9,641,450.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,866,847.40 : 17,756,453.42 = 6,986,478.28 : x
  2. Step 2: Convert to fraction form
    12,866,847.40/17,756,453.42 = 6,986,478.28/x
  3. Step 3: Cross multiply
    12,866,847.40x = 17,756,453.42 × 6,986,478.28
  4. Step 4: Simplify right side
    12,866,847.40x = 124,055,076,148,661.73
  5. Step 5: Solve for x
    x = 124,055,076,148,661.73/12,866,847.40
  6. Step 6: Final answer
    x = 9,641,450.80

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.