Home / 394,616,117.80-591,924,176.70-121,986,447.40

Finding the Fourth Proportional to 394,616,117.80, 591,924,176.70 and 121,986,447.40

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Solution

The fourth proportional to 394,616,117.80, 591,924,176.70 and 121,986,447.40 is: 182,979,671.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    394,616,117.80 : 591,924,176.70 = 121,986,447.40 : x
  2. Step 2: Convert to fraction form
    394,616,117.80/591,924,176.70 = 121,986,447.40/x
  3. Step 3: Cross multiply
    394,616,117.80x = 591,924,176.70 × 121,986,447.40
  4. Step 4: Simplify right side
    394,616,117.80x = 72,206,727,445,802,864
  5. Step 5: Solve for x
    x = 72,206,727,445,802,864/394,616,117.80
  6. Step 6: Final answer
    x = 182,979,671.10

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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.