Home / 278,176,005.46-383,863,684.80-154,406,939.50

Finding the Fourth Proportional to 278,176,005.46, 383,863,684.80 and 154,406,939.50

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Solution

The fourth proportional to 278,176,005.46, 383,863,684.80 and 154,406,939.50 is: 213,070,917.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,176,005.46 : 383,863,684.80 = 154,406,939.50 : x
  2. Step 2: Convert to fraction form
    278,176,005.46/383,863,684.80 = 154,406,939.50/x
  3. Step 3: Cross multiply
    278,176,005.46x = 383,863,684.80 × 154,406,939.50
  4. Step 4: Simplify right side
    278,176,005.46x = 59,271,216,755,160,672
  5. Step 5: Solve for x
    x = 59,271,216,755,160,672/278,176,005.46
  6. Step 6: Final answer
    x = 213,070,917.66

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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.