Home / 289,693,826.70-434,540,740.05-197,860,821.90

Finding the Fourth Proportional to 289,693,826.70, 434,540,740.05 and 197,860,821.90

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Solution

The fourth proportional to 289,693,826.70, 434,540,740.05 and 197,860,821.90 is: 296,791,232.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    289,693,826.70 : 434,540,740.05 = 197,860,821.90 : x
  2. Step 2: Convert to fraction form
    289,693,826.70/434,540,740.05 = 197,860,821.90/x
  3. Step 3: Cross multiply
    289,693,826.70x = 434,540,740.05 × 197,860,821.90
  4. Step 4: Simplify right side
    289,693,826.70x = 85,978,587,975,327,248
  5. Step 5: Solve for x
    x = 85,978,587,975,327,248/289,693,826.70
  6. Step 6: Final answer
    x = 296,791,232.85

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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.