Home / 132,856,398.90-199,368,579.15-78,268,878.90

Finding the Fourth Proportional to 132,856,398.90, 199,368,579.15 and 78,268,878.90

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Solution

The fourth proportional to 132,856,398.90, 199,368,579.15 and 78,268,878.90 is: 117,452,793.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,856,398.90 : 199,368,579.15 = 78,268,878.90 : x
  2. Step 2: Convert to fraction form
    132,856,398.90/199,368,579.15 = 78,268,878.90/x
  3. Step 3: Cross multiply
    132,856,398.90x = 199,368,579.15 × 78,268,878.90
  4. Step 4: Simplify right side
    132,856,398.90x = 15,604,355,177,956,416
  5. Step 5: Solve for x
    x = 15,604,355,177,956,416/132,856,398.90
  6. Step 6: Final answer
    x = 117,452,793.45

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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.