Home / 1,203,504,193.56-1,660,837,740.93-667,655,872.40

Finding the Fourth Proportional to 1,203,504,193.56, 1,660,837,740.93 and 667,655,872.40

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Solution

The fourth proportional to 1,203,504,193.56, 1,660,837,740.93 and 667,655,872.40 is: 921,366,187.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,203,504,193.56 : 1,660,837,740.93 = 667,655,872.40 : x
  2. Step 2: Convert to fraction form
    1,203,504,193.56/1,660,837,740.93 = 667,655,872.40/x
  3. Step 3: Cross multiply
    1,203,504,193.56x = 1,660,837,740.93 × 667,655,872.40
  4. Step 4: Simplify right side
    1,203,504,193.56x = 1,108,868,070,841,485,952
  5. Step 5: Solve for x
    x = 1,108,868,070,841,485,952/1,203,504,193.56
  6. Step 6: Final answer
    x = 921,366,187.82

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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.