Home / 398,641,353.73-550,126,588.98-222,436,775.77

Finding the Fourth Proportional to 398,641,353.73, 550,126,588.98 and 222,436,775.77

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Solution

The fourth proportional to 398,641,353.73, 550,126,588.98 and 222,436,775.77 is: 306,963,599.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    398,641,353.73 : 550,126,588.98 = 222,436,775.77 : x
  2. Step 2: Convert to fraction form
    398,641,353.73/550,126,588.98 = 222,436,775.77/x
  3. Step 3: Cross multiply
    398,641,353.73x = 550,126,588.98 × 222,436,775.77
  4. Step 4: Simplify right side
    398,641,353.73x = 122,368,384,717,518,032
  5. Step 5: Solve for x
    x = 122,368,384,717,518,032/398,641,353.73
  6. Step 6: Final answer
    x = 306,963,599.17

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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.