Home / 889,387,380.21-1,227,354,701.07-492,935,965.40

Finding the Fourth Proportional to 889,387,380.21, 1,227,354,701.07 and 492,935,965.40

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Solution

The fourth proportional to 889,387,380.21, 1,227,354,701.07 and 492,935,965.40 is: 680,251,696.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    889,387,380.21 : 1,227,354,701.07 = 492,935,965.40 : x
  2. Step 2: Convert to fraction form
    889,387,380.21/1,227,354,701.07 = 492,935,965.40/x
  3. Step 3: Cross multiply
    889,387,380.21x = 1,227,354,701.07 × 492,935,965.40
  4. Step 4: Simplify right side
    889,387,380.21x = 605,007,274,465,110,400
  5. Step 5: Solve for x
    x = 605,007,274,465,110,400/889,387,380.21
  6. Step 6: Final answer
    x = 680,251,696.76

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.