Home / 128,730,076.60-192,945,815.70-52,002,729.40

Finding the Fourth Proportional to 128,730,076.60, 192,945,815.70 and 52,002,729.40

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Solution

The fourth proportional to 128,730,076.60, 192,945,815.70 and 52,002,729.40 is: 77,943,782.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,730,076.60 : 192,945,815.70 = 52,002,729.40 : x
  2. Step 2: Convert to fraction form
    128,730,076.60/192,945,815.70 = 52,002,729.40/x
  3. Step 3: Cross multiply
    128,730,076.60x = 192,945,815.70 × 52,002,729.40
  4. Step 4: Simplify right side
    128,730,076.60x = 10,033,709,042,709,370
  5. Step 5: Solve for x
    x = 10,033,709,042,709,370/128,730,076.60
  6. Step 6: Final answer
    x = 77,943,782.12

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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.