Home / 278,375,109.70-416,570,641.35-242,378,839.30

Finding the Fourth Proportional to 278,375,109.70, 416,570,641.35 and 242,378,839.30

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Solution

The fourth proportional to 278,375,109.70, 416,570,641.35 and 242,378,839.30 is: 362,704,512.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,375,109.70 : 416,570,641.35 = 242,378,839.30 : x
  2. Step 2: Convert to fraction form
    278,375,109.70/416,570,641.35 = 242,378,839.30/x
  3. Step 3: Cross multiply
    278,375,109.70x = 416,570,641.35 × 242,378,839.30
  4. Step 4: Simplify right side
    278,375,109.70x = 100,967,908,536,869,600
  5. Step 5: Solve for x
    x = 100,967,908,536,869,600/278,375,109.70
  6. Step 6: Final answer
    x = 362,704,512.79

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.