Home / 260,839,934.10-391,307,140.35-131,121,090.90

Finding the Fourth Proportional to 260,839,934.10, 391,307,140.35 and 131,121,090.90

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Solution

The fourth proportional to 260,839,934.10, 391,307,140.35 and 131,121,090.90 is: 196,705,382.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    260,839,934.10 : 391,307,140.35 = 131,121,090.90 : x
  2. Step 2: Convert to fraction form
    260,839,934.10/391,307,140.35 = 131,121,090.90/x
  3. Step 3: Cross multiply
    260,839,934.10x = 391,307,140.35 × 131,121,090.90
  4. Step 4: Simplify right side
    260,839,934.10x = 51,308,619,119,651,416
  5. Step 5: Solve for x
    x = 51,308,619,119,651,416/260,839,934.10
  6. Step 6: Final answer
    x = 196,705,382.93

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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.