Home / 321,672,219.51-482,428,613.12-91,643,297.07

Finding the Fourth Proportional to 321,672,219.51, 482,428,613.12 and 91,643,297.07

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Solution

The fourth proportional to 321,672,219.51, 482,428,613.12 and 91,643,297.07 is: 137,442,234.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    321,672,219.51 : 482,428,613.12 = 91,643,297.07 : x
  2. Step 2: Convert to fraction form
    321,672,219.51/482,428,613.12 = 91,643,297.07/x
  3. Step 3: Cross multiply
    321,672,219.51x = 482,428,613.12 × 91,643,297.07
  4. Step 4: Simplify right side
    321,672,219.51x = 44,211,348,706,766,040
  5. Step 5: Solve for x
    x = 44,211,348,706,766,040/321,672,219.51
  6. Step 6: Final answer
    x = 137,442,234.75

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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.