Home / 79,043,447.75-109,079,957.90-42,867,575.75

Finding the Fourth Proportional to 79,043,447.75, 109,079,957.90 and 42,867,575.75

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Solution

The fourth proportional to 79,043,447.75, 109,079,957.90 and 42,867,575.75 is: 59,157,254.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,043,447.75 : 109,079,957.90 = 42,867,575.75 : x
  2. Step 2: Convert to fraction form
    79,043,447.75/109,079,957.90 = 42,867,575.75/x
  3. Step 3: Cross multiply
    79,043,447.75x = 109,079,957.90 × 42,867,575.75
  4. Step 4: Simplify right side
    79,043,447.75x = 4,675,993,358,085,061
  5. Step 5: Solve for x
    x = 4,675,993,358,085,061/79,043,447.75
  6. Step 6: Final answer
    x = 59,157,254.54

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.