Home / 386,153,872.80-579,230,809.20-343,827,549.60

Finding the Fourth Proportional to 386,153,872.80, 579,230,809.20 and 343,827,549.60

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Solution

The fourth proportional to 386,153,872.80, 579,230,809.20 and 343,827,549.60 is: 515,741,324.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    386,153,872.80 : 579,230,809.20 = 343,827,549.60 : x
  2. Step 2: Convert to fraction form
    386,153,872.80/579,230,809.20 = 343,827,549.60/x
  3. Step 3: Cross multiply
    386,153,872.80x = 579,230,809.20 × 343,827,549.60
  4. Step 4: Simplify right side
    386,153,872.80x = 199,155,509,780,061,152
  5. Step 5: Solve for x
    x = 199,155,509,780,061,152/386,153,872.80
  6. Step 6: Final answer
    x = 515,741,324.40

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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.