Home / 762,930,967.69-1,052,772,773.84-428,338,141.66

Finding the Fourth Proportional to 762,930,967.69, 1,052,772,773.84 and 428,338,141.66

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Solution

The fourth proportional to 762,930,967.69, 1,052,772,773.84 and 428,338,141.66 is: 591,066,233.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    762,930,967.69 : 1,052,772,773.84 = 428,338,141.66 : x
  2. Step 2: Convert to fraction form
    762,930,967.69/1,052,772,773.84 = 428,338,141.66/x
  3. Step 3: Cross multiply
    762,930,967.69x = 1,052,772,773.84 × 428,338,141.66
  4. Step 4: Simplify right side
    762,930,967.69x = 450,942,733,531,743,872
  5. Step 5: Solve for x
    x = 450,942,733,531,743,872/762,930,967.69
  6. Step 6: Final answer
    x = 591,066,233.55

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.