Home / 5,215,521,769.40-7,823,282,654.10-1,338,128,233.40

Finding the Fourth Proportional to 5,215,521,769.40, 7,823,282,654.10 and 1,338,128,233.40

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Solution

The fourth proportional to 5,215,521,769.40, 7,823,282,654.10 and 1,338,128,233.40 is: 2,007,192,350.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,215,521,769.40 : 7,823,282,654.10 = 1,338,128,233.40 : x
  2. Step 2: Convert to fraction form
    5,215,521,769.40/7,823,282,654.10 = 1,338,128,233.40/x
  3. Step 3: Cross multiply
    5,215,521,769.40x = 7,823,282,654.10 × 1,338,128,233.40
  4. Step 4: Simplify right side
    5,215,521,769.40x = 10,468,555,397,319,698,432
  5. Step 5: Solve for x
    x = 10,468,555,397,319,698,432/5,215,521,769.40
  6. Step 6: Final answer
    x = 2,007,192,350.10

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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.