Home / 261,377,830.60-392,066,745.90-257,976,608.20

Finding the Fourth Proportional to 261,377,830.60, 392,066,745.90 and 257,976,608.20

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Solution

The fourth proportional to 261,377,830.60, 392,066,745.90 and 257,976,608.20 is: 386,964,912.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    261,377,830.60 : 392,066,745.90 = 257,976,608.20 : x
  2. Step 2: Convert to fraction form
    261,377,830.60/392,066,745.90 = 257,976,608.20/x
  3. Step 3: Cross multiply
    261,377,830.60x = 392,066,745.90 × 257,976,608.20
  4. Step 4: Simplify right side
    261,377,830.60x = 101,144,049,295,293,248
  5. Step 5: Solve for x
    x = 101,144,049,295,293,248/261,377,830.60
  6. Step 6: Final answer
    x = 386,964,912.30

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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.