Home / 661,640,911.20-992,461,366.80-273,334,687.20

Finding the Fourth Proportional to 661,640,911.20, 992,461,366.80 and 273,334,687.20

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Solution

The fourth proportional to 661,640,911.20, 992,461,366.80 and 273,334,687.20 is: 410,002,030.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    661,640,911.20 : 992,461,366.80 = 273,334,687.20 : x
  2. Step 2: Convert to fraction form
    661,640,911.20/992,461,366.80 = 273,334,687.20/x
  3. Step 3: Cross multiply
    661,640,911.20x = 992,461,366.80 × 273,334,687.20
  4. Step 4: Simplify right side
    661,640,911.20x = 271,274,117,252,362,432
  5. Step 5: Solve for x
    x = 271,274,117,252,362,432/661,640,911.20
  6. Step 6: Final answer
    x = 410,002,030.80

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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.