Home / 631,855,197.74-947,912,062.89-217,278,177.44

Finding the Fourth Proportional to 631,855,197.74, 947,912,062.89 and 217,278,177.44

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Solution

The fourth proportional to 631,855,197.74, 947,912,062.89 and 217,278,177.44 is: 325,961,717.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    631,855,197.74 : 947,912,062.89 = 217,278,177.44 : x
  2. Step 2: Convert to fraction form
    631,855,197.74/947,912,062.89 = 217,278,177.44/x
  3. Step 3: Cross multiply
    631,855,197.74x = 947,912,062.89 × 217,278,177.44
  4. Step 4: Simplify right side
    631,855,197.74x = 205,960,605,393,390,304
  5. Step 5: Solve for x
    x = 205,960,605,393,390,304/631,855,197.74
  6. Step 6: Final answer
    x = 325,961,717.38

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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.