Home / 289,859,795.20-434,506,257.60-259,248,793.60

Finding the Fourth Proportional to 289,859,795.20, 434,506,257.60 and 259,248,793.60

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Solution

The fourth proportional to 289,859,795.20, 434,506,257.60 and 259,248,793.60 is: 388,619,687.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    289,859,795.20 : 434,506,257.60 = 259,248,793.60 : x
  2. Step 2: Convert to fraction form
    289,859,795.20/434,506,257.60 = 259,248,793.60/x
  3. Step 3: Cross multiply
    289,859,795.20x = 434,506,257.60 × 259,248,793.60
  4. Step 4: Simplify right side
    289,859,795.20x = 112,645,223,094,450,832
  5. Step 5: Solve for x
    x = 112,645,223,094,450,832/289,859,795.20
  6. Step 6: Final answer
    x = 388,619,687.72

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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.