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Finding the Fourth Proportional to 374,482,205.70, 561,723,308.55 and 259,596,471.30

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Solution

The fourth proportional to 374,482,205.70, 561,723,308.55 and 259,596,471.30 is: 389,394,706.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    374,482,205.70 : 561,723,308.55 = 259,596,471.30 : x
  2. Step 2: Convert to fraction form
    374,482,205.70/561,723,308.55 = 259,596,471.30/x
  3. Step 3: Cross multiply
    374,482,205.70x = 561,723,308.55 × 259,596,471.30
  4. Step 4: Simplify right side
    374,482,205.70x = 145,821,388,746,541,120
  5. Step 5: Solve for x
    x = 145,821,388,746,541,120/374,482,205.70
  6. Step 6: Final answer
    x = 389,394,706.95

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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.