Home / 398,486,100.20-597,841,124.70-194,020,845.80

Finding the Fourth Proportional to 398,486,100.20, 597,841,124.70 and 194,020,845.80

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Solution

The fourth proportional to 398,486,100.20, 597,841,124.70 and 194,020,845.80 is: 291,085,788.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    398,486,100.20 : 597,841,124.70 = 194,020,845.80 : x
  2. Step 2: Convert to fraction form
    398,486,100.20/597,841,124.70 = 194,020,845.80/x
  3. Step 3: Cross multiply
    398,486,100.20x = 597,841,124.70 × 194,020,845.80
  4. Step 4: Simplify right side
    398,486,100.20x = 115,993,640,668,317,280
  5. Step 5: Solve for x
    x = 115,993,640,668,317,280/398,486,100.20
  6. Step 6: Final answer
    x = 291,085,788.46

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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.