Home / 343,328,531.20-514,992,796.80-305,705,132.80

Finding the Fourth Proportional to 343,328,531.20, 514,992,796.80 and 305,705,132.80

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Solution

The fourth proportional to 343,328,531.20, 514,992,796.80 and 305,705,132.80 is: 458,557,699.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    343,328,531.20 : 514,992,796.80 = 305,705,132.80 : x
  2. Step 2: Convert to fraction form
    343,328,531.20/514,992,796.80 = 305,705,132.80/x
  3. Step 3: Cross multiply
    343,328,531.20x = 514,992,796.80 × 305,705,132.80
  4. Step 4: Simplify right side
    343,328,531.20x = 157,435,941,336,787,424
  5. Step 5: Solve for x
    x = 157,435,941,336,787,424/343,328,531.20
  6. Step 6: Final answer
    x = 458,557,699.20

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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.