Home / 128,730,203.60-192,946,006.20-52,002,856.40

Finding the Fourth Proportional to 128,730,203.60, 192,946,006.20 and 52,002,856.40

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Solution

The fourth proportional to 128,730,203.60, 192,946,006.20 and 52,002,856.40 is: 77,943,972.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,730,203.60 : 192,946,006.20 = 52,002,856.40 : x
  2. Step 2: Convert to fraction form
    128,730,203.60/192,946,006.20 = 52,002,856.40/x
  3. Step 3: Cross multiply
    128,730,203.60x = 192,946,006.20 × 52,002,856.40
  4. Step 4: Simplify right side
    128,730,203.60x = 10,033,743,453,372,108
  5. Step 5: Solve for x
    x = 10,033,743,453,372,108/128,730,203.60
  6. Step 6: Final answer
    x = 77,943,972.53

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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.