Home / 258,646,478.40-387,969,717.60-230,586,393.60

Finding the Fourth Proportional to 258,646,478.40, 387,969,717.60 and 230,586,393.60

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Solution

The fourth proportional to 258,646,478.40, 387,969,717.60 and 230,586,393.60 is: 345,879,590.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    258,646,478.40 : 387,969,717.60 = 230,586,393.60 : x
  2. Step 2: Convert to fraction form
    258,646,478.40/387,969,717.60 = 230,586,393.60/x
  3. Step 3: Cross multiply
    258,646,478.40x = 387,969,717.60 × 230,586,393.60
  4. Step 4: Simplify right side
    258,646,478.40x = 89,460,538,007,394,448
  5. Step 5: Solve for x
    x = 89,460,538,007,394,448/258,646,478.40
  6. Step 6: Final answer
    x = 345,879,590.40

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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.