Home / 112,344,078.30-168,516,117.45-82,110,990.30

Finding the Fourth Proportional to 112,344,078.30, 168,516,117.45 and 82,110,990.30

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Solution

The fourth proportional to 112,344,078.30, 168,516,117.45 and 82,110,990.30 is: 123,166,485.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,344,078.30 : 168,516,117.45 = 82,110,990.30 : x
  2. Step 2: Convert to fraction form
    112,344,078.30/168,516,117.45 = 82,110,990.30/x
  3. Step 3: Cross multiply
    112,344,078.30x = 168,516,117.45 × 82,110,990.30
  4. Step 4: Simplify right side
    112,344,078.30x = 13,837,025,285,330,610
  5. Step 5: Solve for x
    x = 13,837,025,285,330,610/112,344,078.30
  6. Step 6: Final answer
    x = 123,166,485.45

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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.