Home / 347,680,039.40-521,520,059.10-342,578,205.80

Finding the Fourth Proportional to 347,680,039.40, 521,520,059.10 and 342,578,205.80

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Solution

The fourth proportional to 347,680,039.40, 521,520,059.10 and 342,578,205.80 is: 513,867,308.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    347,680,039.40 : 521,520,059.10 = 342,578,205.80 : x
  2. Step 2: Convert to fraction form
    347,680,039.40/521,520,059.10 = 342,578,205.80/x
  3. Step 3: Cross multiply
    347,680,039.40x = 521,520,059.10 × 342,578,205.80
  4. Step 4: Simplify right side
    347,680,039.40x = 178,661,406,135,187,968
  5. Step 5: Solve for x
    x = 178,661,406,135,187,968/347,680,039.40
  6. Step 6: Final answer
    x = 513,867,308.70

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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.