Home / 261,658,313.80-392,062,317.90-218,292,728.20

Finding the Fourth Proportional to 261,658,313.80, 392,062,317.90 and 218,292,728.20

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Solution

The fourth proportional to 261,658,313.80, 392,062,317.90 and 218,292,728.20 is: 327,084,401.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    261,658,313.80 : 392,062,317.90 = 218,292,728.20 : x
  2. Step 2: Convert to fraction form
    261,658,313.80/392,062,317.90 = 218,292,728.20/x
  3. Step 3: Cross multiply
    261,658,313.80x = 392,062,317.90 × 218,292,728.20
  4. Step 4: Simplify right side
    261,658,313.80x = 85,584,352,998,806,688
  5. Step 5: Solve for x
    x = 85,584,352,998,806,688/261,658,313.80
  6. Step 6: Final answer
    x = 327,084,401.62

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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.