Home / 206,277,370.92-309,451,307.60-85,042,549.80

Finding the Fourth Proportional to 206,277,370.92, 309,451,307.60 and 85,042,549.80

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Solution

The fourth proportional to 206,277,370.92, 309,451,307.60 and 85,042,549.80 is: 127,578,357.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    206,277,370.92 : 309,451,307.60 = 85,042,549.80 : x
  2. Step 2: Convert to fraction form
    206,277,370.92/309,451,307.60 = 85,042,549.80/x
  3. Step 3: Cross multiply
    206,277,370.92x = 309,451,307.60 × 85,042,549.80
  4. Step 4: Simplify right side
    206,277,370.92x = 26,316,528,237,248,120
  5. Step 5: Solve for x
    x = 26,316,528,237,248,120/206,277,370.92
  6. Step 6: Final answer
    x = 127,578,357.82

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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.