Home / 278,176,072.52-383,863,777.20-154,407,006.56

Finding the Fourth Proportional to 278,176,072.52, 383,863,777.20 and 154,407,006.56

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Solution

The fourth proportional to 278,176,072.52, 383,863,777.20 and 154,407,006.56 is: 213,071,010.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,176,072.52 : 383,863,777.20 = 154,407,006.56 : x
  2. Step 2: Convert to fraction form
    278,176,072.52/383,863,777.20 = 154,407,006.56/x
  3. Step 3: Cross multiply
    278,176,072.52x = 383,863,777.20 × 154,407,006.56
  4. Step 4: Simplify right side
    278,176,072.52x = 59,271,256,765,226,440
  5. Step 5: Solve for x
    x = 59,271,256,765,226,440/278,176,072.52
  6. Step 6: Final answer
    x = 213,071,010.13

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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.