Home / 79,261,387.80-118,892,081.70-67,168,152.60

Finding the Fourth Proportional to 79,261,387.80, 118,892,081.70 and 67,168,152.60

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Solution

The fourth proportional to 79,261,387.80, 118,892,081.70 and 67,168,152.60 is: 100,752,228.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,261,387.80 : 118,892,081.70 = 67,168,152.60 : x
  2. Step 2: Convert to fraction form
    79,261,387.80/118,892,081.70 = 67,168,152.60/x
  3. Step 3: Cross multiply
    79,261,387.80x = 118,892,081.70 × 67,168,152.60
  4. Step 4: Simplify right side
    79,261,387.80x = 7,985,761,486,557,267
  5. Step 5: Solve for x
    x = 7,985,761,486,557,267/79,261,387.80
  6. Step 6: Final answer
    x = 100,752,228.90

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1.5x scale

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.