Home / 382,828,449.54-528,305,412.60-217,816,019.04

Finding the Fourth Proportional to 382,828,449.54, 528,305,412.60 and 217,816,019.04

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Solution

The fourth proportional to 382,828,449.54, 528,305,412.60 and 217,816,019.04 is: 300,587,330.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    382,828,449.54 : 528,305,412.60 = 217,816,019.04 : x
  2. Step 2: Convert to fraction form
    382,828,449.54/528,305,412.60 = 217,816,019.04/x
  3. Step 3: Cross multiply
    382,828,449.54x = 528,305,412.60 × 217,816,019.04
  4. Step 4: Simplify right side
    382,828,449.54x = 115,073,381,809,816,656
  5. Step 5: Solve for x
    x = 115,073,381,809,816,656/382,828,449.54
  6. Step 6: Final answer
    x = 300,587,330.82

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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.