Home / 289,693,830.20-434,540,745.30-197,860,825.40

Finding the Fourth Proportional to 289,693,830.20, 434,540,745.30 and 197,860,825.40

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Solution

The fourth proportional to 289,693,830.20, 434,540,745.30 and 197,860,825.40 is: 296,791,238.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    289,693,830.20 : 434,540,745.30 = 197,860,825.40 : x
  2. Step 2: Convert to fraction form
    289,693,830.20/434,540,745.30 = 197,860,825.40/x
  3. Step 3: Cross multiply
    289,693,830.20x = 434,540,745.30 × 197,860,825.40
  4. Step 4: Simplify right side
    289,693,830.20x = 85,978,590,534,989,168
  5. Step 5: Solve for x
    x = 85,978,590,534,989,168/289,693,830.20
  6. Step 6: Final answer
    x = 296,791,238.10

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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.