Home / 7,128,051.20-10,692,076.80-6,708,147.20

Finding the Fourth Proportional to 7,128,051.20, 10,692,076.80 and 6,708,147.20

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Solution

The fourth proportional to 7,128,051.20, 10,692,076.80 and 6,708,147.20 is: 10,062,220.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,128,051.20 : 10,692,076.80 = 6,708,147.20 : x
  2. Step 2: Convert to fraction form
    7,128,051.20/10,692,076.80 = 6,708,147.20/x
  3. Step 3: Cross multiply
    7,128,051.20x = 10,692,076.80 × 6,708,147.20
  4. Step 4: Simplify right side
    7,128,051.20x = 71,724,025,048,104.97
  5. Step 5: Solve for x
    x = 71,724,025,048,104.97/7,128,051.20
  6. Step 6: Final answer
    x = 10,062,220.80

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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.