Home / 5,390,256.80-8,085,385.20-4,185,657.20

Finding the Fourth Proportional to 5,390,256.80, 8,085,385.20 and 4,185,657.20

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Solution

The fourth proportional to 5,390,256.80, 8,085,385.20 and 4,185,657.20 is: 6,278,485.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,390,256.80 : 8,085,385.20 = 4,185,657.20 : x
  2. Step 2: Convert to fraction form
    5,390,256.80/8,085,385.20 = 4,185,657.20/x
  3. Step 3: Cross multiply
    5,390,256.80x = 8,085,385.20 × 4,185,657.20
  4. Step 4: Simplify right side
    5,390,256.80x = 33,842,650,777,153.44
  5. Step 5: Solve for x
    x = 33,842,650,777,153.44/5,390,256.80
  6. Step 6: Final answer
    x = 6,278,485.80

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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.