Home / 278,176,141.22-383,863,871.88-154,407,075.26

Finding the Fourth Proportional to 278,176,141.22, 383,863,871.88 and 154,407,075.26

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Solution

The fourth proportional to 278,176,141.22, 383,863,871.88 and 154,407,075.26 is: 213,071,104.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,176,141.22 : 383,863,871.88 = 154,407,075.26 : x
  2. Step 2: Convert to fraction form
    278,176,141.22/383,863,871.88 = 154,407,075.26/x
  3. Step 3: Cross multiply
    278,176,141.22x = 383,863,871.88 × 154,407,075.26
  4. Step 4: Simplify right side
    278,176,141.22x = 59,271,297,753,050,832
  5. Step 5: Solve for x
    x = 59,271,297,753,050,832/278,176,141.22
  6. Step 6: Final answer
    x = 213,071,104.86

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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.