Home / 71,081,290.80-106,621,936.20-66,298,321.80

Finding the Fourth Proportional to 71,081,290.80, 106,621,936.20 and 66,298,321.80

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Solution

The fourth proportional to 71,081,290.80, 106,621,936.20 and 66,298,321.80 is: 99,447,482.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,081,290.80 : 106,621,936.20 = 66,298,321.80 : x
  2. Step 2: Convert to fraction form
    71,081,290.80/106,621,936.20 = 66,298,321.80/x
  3. Step 3: Cross multiply
    71,081,290.80x = 106,621,936.20 × 66,298,321.80
  4. Step 4: Simplify right side
    71,081,290.80x = 7,068,855,437,126,669
  5. Step 5: Solve for x
    x = 7,068,855,437,126,669/71,081,290.80
  6. Step 6: Final answer
    x = 99,447,482.70

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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.