Home / 354,297,411.40-531,446,117.10-198,691,486.60

Finding the Fourth Proportional to 354,297,411.40, 531,446,117.10 and 198,691,486.60

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Solution

The fourth proportional to 354,297,411.40, 531,446,117.10 and 198,691,486.60 is: 298,037,229.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    354,297,411.40 : 531,446,117.10 = 198,691,486.60 : x
  2. Step 2: Convert to fraction form
    354,297,411.40/531,446,117.10 = 198,691,486.60/x
  3. Step 3: Cross multiply
    354,297,411.40x = 531,446,117.10 × 198,691,486.60
  4. Step 4: Simplify right side
    354,297,411.40x = 105,593,819,054,396,688
  5. Step 5: Solve for x
    x = 105,593,819,054,396,688/354,297,411.40
  6. Step 6: Final answer
    x = 298,037,229.90

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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.