Home / 38,019,073.80-56,986,620.30-20,991,966.60

Finding the Fourth Proportional to 38,019,073.80, 56,986,620.30 and 20,991,966.60

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Solution

The fourth proportional to 38,019,073.80, 56,986,620.30 and 20,991,966.60 is: 31,464,765.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,019,073.80 : 56,986,620.30 = 20,991,966.60 : x
  2. Step 2: Convert to fraction form
    38,019,073.80/56,986,620.30 = 20,991,966.60/x
  3. Step 3: Cross multiply
    38,019,073.80x = 56,986,620.30 × 20,991,966.60
  4. Step 4: Simplify right side
    38,019,073.80x = 1,196,261,229,984,482
  5. Step 5: Solve for x
    x = 1,196,261,229,984,482/38,019,073.80
  6. Step 6: Final answer
    x = 31,464,765.19

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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.