Home / 7,128,086.40-10,692,129.60-4,860,604.80

Finding the Fourth Proportional to 7,128,086.40, 10,692,129.60 and 4,860,604.80

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Solution

The fourth proportional to 7,128,086.40, 10,692,129.60 and 4,860,604.80 is: 7,290,907.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,128,086.40 : 10,692,129.60 = 4,860,604.80 : x
  2. Step 2: Convert to fraction form
    7,128,086.40/10,692,129.60 = 4,860,604.80/x
  3. Step 3: Cross multiply
    7,128,086.40x = 10,692,129.60 × 4,860,604.80
  4. Step 4: Simplify right side
    7,128,086.40x = 51,970,216,455,982.08
  5. Step 5: Solve for x
    x = 51,970,216,455,982.08/7,128,086.40
  6. Step 6: Final answer
    x = 7,290,907.20

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Similar ratio
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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.