Home / 81,468,210.90-122,202,316.35-70,945,679.10

Finding the Fourth Proportional to 81,468,210.90, 122,202,316.35 and 70,945,679.10

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Solution

The fourth proportional to 81,468,210.90, 122,202,316.35 and 70,945,679.10 is: 106,418,518.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,468,210.90 : 122,202,316.35 = 70,945,679.10 : x
  2. Step 2: Convert to fraction form
    81,468,210.90/122,202,316.35 = 70,945,679.10/x
  3. Step 3: Cross multiply
    81,468,210.90x = 122,202,316.35 × 70,945,679.10
  4. Step 4: Simplify right side
    81,468,210.90x = 8,669,726,321,043,782
  5. Step 5: Solve for x
    x = 8,669,726,321,043,782/81,468,210.90
  6. Step 6: Final answer
    x = 106,418,518.65

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Double scale
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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.