Home / 78,733,508.64-108,655,391.60-43,929,240.80

Finding the Fourth Proportional to 78,733,508.64, 108,655,391.60 and 43,929,240.80

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Solution

The fourth proportional to 78,733,508.64, 108,655,391.60 and 43,929,240.80 is: 60,624,109.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,733,508.64 : 108,655,391.60 = 43,929,240.80 : x
  2. Step 2: Convert to fraction form
    78,733,508.64/108,655,391.60 = 43,929,240.80/x
  3. Step 3: Cross multiply
    78,733,508.64x = 108,655,391.60 × 43,929,240.80
  4. Step 4: Simplify right side
    78,733,508.64x = 4,773,148,861,814,697
  5. Step 5: Solve for x
    x = 4,773,148,861,814,697/78,733,508.64
  6. Step 6: Final answer
    x = 60,624,109.66

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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.