Home / 79,261,381.80-118,892,072.70-67,168,146.60

Finding the Fourth Proportional to 79,261,381.80, 118,892,072.70 and 67,168,146.60

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Solution

The fourth proportional to 79,261,381.80, 118,892,072.70 and 67,168,146.60 is: 100,752,219.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,261,381.80 : 118,892,072.70 = 67,168,146.60 : x
  2. Step 2: Convert to fraction form
    79,261,381.80/118,892,072.70 = 67,168,146.60/x
  3. Step 3: Cross multiply
    79,261,381.80x = 118,892,072.70 × 67,168,146.60
  4. Step 4: Simplify right side
    79,261,381.80x = 7,985,760,168,691,457
  5. Step 5: Solve for x
    x = 7,985,760,168,691,457/79,261,381.80
  6. Step 6: Final answer
    x = 100,752,219.90

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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.