Home / 68,911,961.60-103,367,942.40-30,577,350.80

Finding the Fourth Proportional to 68,911,961.60, 103,367,942.40 and 30,577,350.80

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Solution

The fourth proportional to 68,911,961.60, 103,367,942.40 and 30,577,350.80 is: 45,866,026.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,911,961.60 : 103,367,942.40 = 30,577,350.80 : x
  2. Step 2: Convert to fraction form
    68,911,961.60/103,367,942.40 = 30,577,350.80/x
  3. Step 3: Cross multiply
    68,911,961.60x = 103,367,942.40 × 30,577,350.80
  4. Step 4: Simplify right side
    68,911,961.60x = 3,160,717,836,238,994
  5. Step 5: Solve for x
    x = 3,160,717,836,238,994/68,911,961.60
  6. Step 6: Final answer
    x = 45,866,026.20

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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.