Home / 840,418,660.74-1,260,673,967.79-349,181,598.72

Finding the Fourth Proportional to 840,418,660.74, 1,260,673,967.79 and 349,181,598.72

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Solution

The fourth proportional to 840,418,660.74, 1,260,673,967.79 and 349,181,598.72 is: 523,791,500.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    840,418,660.74 : 1,260,673,967.79 = 349,181,598.72 : x
  2. Step 2: Convert to fraction form
    840,418,660.74/1,260,673,967.79 = 349,181,598.72/x
  3. Step 3: Cross multiply
    840,418,660.74x = 1,260,673,967.79 × 349,181,598.72
  4. Step 4: Simplify right side
    840,418,660.74x = 440,204,151,537,598,016
  5. Step 5: Solve for x
    x = 440,204,151,537,598,016/840,418,660.74
  6. Step 6: Final answer
    x = 523,791,500.71

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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.