Home / 289,285,799.15-399,219,661.98-163,864,035.92

Finding the Fourth Proportional to 289,285,799.15, 399,219,661.98 and 163,864,035.92

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Solution

The fourth proportional to 289,285,799.15, 399,219,661.98 and 163,864,035.92 is: 226,135,348.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    289,285,799.15 : 399,219,661.98 = 163,864,035.92 : x
  2. Step 2: Convert to fraction form
    289,285,799.15/399,219,661.98 = 163,864,035.92/x
  3. Step 3: Cross multiply
    289,285,799.15x = 399,219,661.98 × 163,864,035.92
  4. Step 4: Simplify right side
    289,285,799.15x = 65,417,745,028,664,880
  5. Step 5: Solve for x
    x = 65,417,745,028,664,880/289,285,799.15
  6. Step 6: Final answer
    x = 226,135,348.58

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.