Home / 712,698,310.96-1,067,668,530.80-400,858,446.53

Finding the Fourth Proportional to 712,698,310.96, 1,067,668,530.80 and 400,858,446.53

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Solution

The fourth proportional to 712,698,310.96, 1,067,668,530.80 and 400,858,446.53 is: 600,512,084.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    712,698,310.96 : 1,067,668,530.80 = 400,858,446.53 : x
  2. Step 2: Convert to fraction form
    712,698,310.96/1,067,668,530.80 = 400,858,446.53/x
  3. Step 3: Cross multiply
    712,698,310.96x = 1,067,668,530.80 × 400,858,446.53
  4. Step 4: Simplify right side
    712,698,310.96x = 427,983,948,665,455,424
  5. Step 5: Solve for x
    x = 427,983,948,665,455,424/712,698,310.96
  6. Step 6: Final answer
    x = 600,512,084.96

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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.