Home / 387,586,328.43-581,145,323.09-154,452,906.03

Finding the Fourth Proportional to 387,586,328.43, 581,145,323.09 and 154,452,906.03

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Solution

The fourth proportional to 387,586,328.43, 581,145,323.09 and 154,452,906.03 is: 231,586,042.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    387,586,328.43 : 581,145,323.09 = 154,452,906.03 : x
  2. Step 2: Convert to fraction form
    387,586,328.43/581,145,323.09 = 154,452,906.03/x
  3. Step 3: Cross multiply
    387,586,328.43x = 581,145,323.09 × 154,452,906.03
  4. Step 4: Simplify right side
    387,586,328.43x = 89,759,583,976,221,504
  5. Step 5: Solve for x
    x = 89,759,583,976,221,504/387,586,328.43
  6. Step 6: Final answer
    x = 231,586,042.62

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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.