Home / 128,138,178.60-192,228,211.26-41,851,535.40

Finding the Fourth Proportional to 128,138,178.60, 192,228,211.26 and 41,851,535.40

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Solution

The fourth proportional to 128,138,178.60, 192,228,211.26 and 41,851,535.40 is: 62,784,143.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,138,178.60 : 192,228,211.26 = 41,851,535.40 : x
  2. Step 2: Convert to fraction form
    128,138,178.60/192,228,211.26 = 41,851,535.40/x
  3. Step 3: Cross multiply
    128,138,178.60x = 192,228,211.26 × 41,851,535.40
  4. Step 4: Simplify right side
    128,138,178.60x = 8,045,045,788,426,568
  5. Step 5: Solve for x
    x = 8,045,045,788,426,568/128,138,178.60
  6. Step 6: Final answer
    x = 62,784,143.46

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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.