Home / 278,176,127.96-383,863,853.72-154,407,062

Finding the Fourth Proportional to 278,176,127.96, 383,863,853.72 and 154,407,062

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Solution

The fourth proportional to 278,176,127.96, 383,863,853.72 and 154,407,062 is: 213,071,086.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,176,127.96 : 383,863,853.72 = 154,407,062 : x
  2. Step 2: Convert to fraction form
    278,176,127.96/383,863,853.72 = 154,407,062/x
  3. Step 3: Cross multiply
    278,176,127.96x = 383,863,853.72 × 154,407,062
  4. Step 4: Simplify right side
    278,176,127.96x = 59,271,289,860,902,976
  5. Step 5: Solve for x
    x = 59,271,289,860,902,976/278,176,127.96
  6. Step 6: Final answer
    x = 213,071,086.64

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.