Home / 568,838,678.40-853,258,017.78-159,894,828.90

Finding the Fourth Proportional to 568,838,678.40, 853,258,017.78 and 159,894,828.90

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Solution

The fourth proportional to 568,838,678.40, 853,258,017.78 and 159,894,828.90 is: 239,842,243.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    568,838,678.40 : 853,258,017.78 = 159,894,828.90 : x
  2. Step 2: Convert to fraction form
    568,838,678.40/853,258,017.78 = 159,894,828.90/x
  3. Step 3: Cross multiply
    568,838,678.40x = 853,258,017.78 × 159,894,828.90
  4. Step 4: Simplify right side
    568,838,678.40x = 136,431,544,760,486,256
  5. Step 5: Solve for x
    x = 136,431,544,760,486,256/568,838,678.40
  6. Step 6: Final answer
    x = 239,842,243.40

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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.