Home / 310,318,115.76-428,647,777.12-230,012,904.08

Finding the Fourth Proportional to 310,318,115.76, 428,647,777.12 and 230,012,904.08

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Solution

The fourth proportional to 310,318,115.76, 428,647,777.12 and 230,012,904.08 is: 317,720,800.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    310,318,115.76 : 428,647,777.12 = 230,012,904.08 : x
  2. Step 2: Convert to fraction form
    310,318,115.76/428,647,777.12 = 230,012,904.08/x
  3. Step 3: Cross multiply
    310,318,115.76x = 428,647,777.12 × 230,012,904.08
  4. Step 4: Simplify right side
    310,318,115.76x = 98,594,520,042,807,792
  5. Step 5: Solve for x
    x = 98,594,520,042,807,792/310,318,115.76
  6. Step 6: Final answer
    x = 317,720,800.16

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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.