Home / 278,176,007.46-383,863,687.56-154,406,941.50

Finding the Fourth Proportional to 278,176,007.46, 383,863,687.56 and 154,406,941.50

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Solution

The fourth proportional to 278,176,007.46, 383,863,687.56 and 154,406,941.50 is: 213,070,920.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,176,007.46 : 383,863,687.56 = 154,406,941.50 : x
  2. Step 2: Convert to fraction form
    278,176,007.46/383,863,687.56 = 154,406,941.50/x
  3. Step 3: Cross multiply
    278,176,007.46x = 383,863,687.56 × 154,406,941.50
  4. Step 4: Simplify right side
    278,176,007.46x = 59,271,217,949,051,200
  5. Step 5: Solve for x
    x = 59,271,217,949,051,200/278,176,007.46
  6. Step 6: Final answer
    x = 213,070,920.42

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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.