Home / 28,083,620.80-42,125,431.20-7,888,862.80

Finding the Fourth Proportional to 28,083,620.80, 42,125,431.20 and 7,888,862.80

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Solution

The fourth proportional to 28,083,620.80, 42,125,431.20 and 7,888,862.80 is: 11,833,294.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,083,620.80 : 42,125,431.20 = 7,888,862.80 : x
  2. Step 2: Convert to fraction form
    28,083,620.80/42,125,431.20 = 7,888,862.80/x
  3. Step 3: Cross multiply
    28,083,620.80x = 42,125,431.20 × 7,888,862.80
  4. Step 4: Simplify right side
    28,083,620.80x = 332,321,747,127,639.38
  5. Step 5: Solve for x
    x = 332,321,747,127,639.38/28,083,620.80
  6. Step 6: Final answer
    x = 11,833,294.20

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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.