Home / 398,601,347.20-597,902,020.80-343,118,906.80

Finding the Fourth Proportional to 398,601,347.20, 597,902,020.80 and 343,118,906.80

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Solution

The fourth proportional to 398,601,347.20, 597,902,020.80 and 343,118,906.80 is: 514,678,360.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    398,601,347.20 : 597,902,020.80 = 343,118,906.80 : x
  2. Step 2: Convert to fraction form
    398,601,347.20/597,902,020.80 = 343,118,906.80/x
  3. Step 3: Cross multiply
    398,601,347.20x = 597,902,020.80 × 343,118,906.80
  4. Step 4: Simplify right side
    398,601,347.20x = 205,151,487,750,406,848
  5. Step 5: Solve for x
    x = 205,151,487,750,406,848/398,601,347.20
  6. Step 6: Final answer
    x = 514,678,360.20

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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.