Home / 661,972,399.02-913,521,867.35-383,675,348.97

Finding the Fourth Proportional to 661,972,399.02, 913,521,867.35 and 383,675,348.97

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Solution

The fourth proportional to 661,972,399.02, 913,521,867.35 and 383,675,348.97 is: 529,471,956.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    661,972,399.02 : 913,521,867.35 = 383,675,348.97 : x
  2. Step 2: Convert to fraction form
    661,972,399.02/913,521,867.35 = 383,675,348.97/x
  3. Step 3: Cross multiply
    661,972,399.02x = 913,521,867.35 × 383,675,348.97
  4. Step 4: Simplify right side
    661,972,399.02x = 350,495,821,245,318,976
  5. Step 5: Solve for x
    x = 350,495,821,245,318,976/661,972,399.02
  6. Step 6: Final answer
    x = 529,471,956.48

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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.