Home / 319,228,301.92-478,839,564.24-100,878,678.64

Finding the Fourth Proportional to 319,228,301.92, 478,839,564.24 and 100,878,678.64

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Solution

The fourth proportional to 319,228,301.92, 478,839,564.24 and 100,878,678.64 is: 151,317,105.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    319,228,301.92 : 478,839,564.24 = 100,878,678.64 : x
  2. Step 2: Convert to fraction form
    319,228,301.92/478,839,564.24 = 100,878,678.64/x
  3. Step 3: Cross multiply
    319,228,301.92x = 478,839,564.24 × 100,878,678.64
  4. Step 4: Simplify right side
    319,228,301.92x = 48,304,702,521,084,600
  5. Step 5: Solve for x
    x = 48,304,702,521,084,600/319,228,301.92
  6. Step 6: Final answer
    x = 151,317,105.13

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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.