Home / 9,128,466.80-13,692,700.20-5,538,287.60

Finding the Fourth Proportional to 9,128,466.80, 13,692,700.20 and 5,538,287.60

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Solution

The fourth proportional to 9,128,466.80, 13,692,700.20 and 5,538,287.60 is: 8,307,431.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,128,466.80 : 13,692,700.20 = 5,538,287.60 : x
  2. Step 2: Convert to fraction form
    9,128,466.80/13,692,700.20 = 5,538,287.60/x
  3. Step 3: Cross multiply
    9,128,466.80x = 13,692,700.20 × 5,538,287.60
  4. Step 4: Simplify right side
    9,128,466.80x = 75,834,111,728,177.52
  5. Step 5: Solve for x
    x = 75,834,111,728,177.52/9,128,466.80
  6. Step 6: Final answer
    x = 8,307,431.40

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Double scale
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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.