Home / 99,649,920.30-149,474,880.45-74,140,752.30

Finding the Fourth Proportional to 99,649,920.30, 149,474,880.45 and 74,140,752.30

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Solution

The fourth proportional to 99,649,920.30, 149,474,880.45 and 74,140,752.30 is: 111,211,128.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,649,920.30 : 149,474,880.45 = 74,140,752.30 : x
  2. Step 2: Convert to fraction form
    99,649,920.30/149,474,880.45 = 74,140,752.30/x
  3. Step 3: Cross multiply
    99,649,920.30x = 149,474,880.45 × 74,140,752.30
  4. Step 4: Simplify right side
    99,649,920.30x = 11,082,180,086,515,562
  5. Step 5: Solve for x
    x = 11,082,180,086,515,562/99,649,920.30
  6. Step 6: Final answer
    x = 111,211,128.45

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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.