Home / 208,656,006.80-312,984,010.20-131,057,747.60

Finding the Fourth Proportional to 208,656,006.80, 312,984,010.20 and 131,057,747.60

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Solution

The fourth proportional to 208,656,006.80, 312,984,010.20 and 131,057,747.60 is: 196,586,621.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,656,006.80 : 312,984,010.20 = 131,057,747.60 : x
  2. Step 2: Convert to fraction form
    208,656,006.80/312,984,010.20 = 131,057,747.60/x
  3. Step 3: Cross multiply
    208,656,006.80x = 312,984,010.20 × 131,057,747.60
  4. Step 4: Simplify right side
    208,656,006.80x = 41,018,979,411,627,424
  5. Step 5: Solve for x
    x = 41,018,979,411,627,424/208,656,006.80
  6. Step 6: Final answer
    x = 196,586,621.40

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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.