Home / 90,730,648.40-136,095,972.60-82,794,462.80

Finding the Fourth Proportional to 90,730,648.40, 136,095,972.60 and 82,794,462.80

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Solution

The fourth proportional to 90,730,648.40, 136,095,972.60 and 82,794,462.80 is: 124,191,694.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,730,648.40 : 136,095,972.60 = 82,794,462.80 : x
  2. Step 2: Convert to fraction form
    90,730,648.40/136,095,972.60 = 82,794,462.80/x
  3. Step 3: Cross multiply
    90,730,648.40x = 136,095,972.60 × 82,794,462.80
  4. Step 4: Simplify right side
    90,730,648.40x = 11,267,992,940,660,518
  5. Step 5: Solve for x
    x = 11,267,992,940,660,518/90,730,648.40
  6. Step 6: Final answer
    x = 124,191,694.20

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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.