Home / 85,468,986.90-128,203,480.35-24,886,689.30

Finding the Fourth Proportional to 85,468,986.90, 128,203,480.35 and 24,886,689.30

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Solution

The fourth proportional to 85,468,986.90, 128,203,480.35 and 24,886,689.30 is: 37,330,033.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,468,986.90 : 128,203,480.35 = 24,886,689.30 : x
  2. Step 2: Convert to fraction form
    85,468,986.90/128,203,480.35 = 24,886,689.30/x
  3. Step 3: Cross multiply
    85,468,986.90x = 128,203,480.35 × 24,886,689.30
  4. Step 4: Simplify right side
    85,468,986.90x = 3,190,560,182,649,105
  5. Step 5: Solve for x
    x = 3,190,560,182,649,105/85,468,986.90
  6. Step 6: Final answer
    x = 37,330,033.95

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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.