Home / 6,391,480.80-9,574,779.60-3,859,615.20

Finding the Fourth Proportional to 6,391,480.80, 9,574,779.60 and 3,859,615.20

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Solution

The fourth proportional to 6,391,480.80, 9,574,779.60 and 3,859,615.20 is: 5,781,909.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,391,480.80 : 9,574,779.60 = 3,859,615.20 : x
  2. Step 2: Convert to fraction form
    6,391,480.80/9,574,779.60 = 3,859,615.20/x
  3. Step 3: Cross multiply
    6,391,480.80x = 9,574,779.60 × 3,859,615.20
  4. Step 4: Simplify right side
    6,391,480.80x = 36,954,964,880,809.92
  5. Step 5: Solve for x
    x = 36,954,964,880,809.92/6,391,480.80
  6. Step 6: Final answer
    x = 5,781,909.71

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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.