Home / 343,328,527.20-514,992,790.80-305,705,128.80

Finding the Fourth Proportional to 343,328,527.20, 514,992,790.80 and 305,705,128.80

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Solution

The fourth proportional to 343,328,527.20, 514,992,790.80 and 305,705,128.80 is: 458,557,693.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    343,328,527.20 : 514,992,790.80 = 305,705,128.80 : x
  2. Step 2: Convert to fraction form
    343,328,527.20/514,992,790.80 = 305,705,128.80/x
  3. Step 3: Cross multiply
    343,328,527.20x = 514,992,790.80 × 305,705,128.80
  4. Step 4: Simplify right side
    343,328,527.20x = 157,435,937,442,585,472
  5. Step 5: Solve for x
    x = 157,435,937,442,585,472/343,328,527.20
  6. Step 6: Final answer
    x = 458,557,693.20

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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.