Home / 83,043,231.70-124,564,847.55-78,886,182.10

Finding the Fourth Proportional to 83,043,231.70, 124,564,847.55 and 78,886,182.10

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Solution

The fourth proportional to 83,043,231.70, 124,564,847.55 and 78,886,182.10 is: 118,329,273.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,043,231.70 : 124,564,847.55 = 78,886,182.10 : x
  2. Step 2: Convert to fraction form
    83,043,231.70/124,564,847.55 = 78,886,182.10/x
  3. Step 3: Cross multiply
    83,043,231.70x = 124,564,847.55 × 78,886,182.10
  4. Step 4: Simplify right side
    83,043,231.70x = 9,826,445,247,088,038
  5. Step 5: Solve for x
    x = 9,826,445,247,088,038/83,043,231.70
  6. Step 6: Final answer
    x = 118,329,273.15

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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.