Home / 819,131,886.95-1,228,563,309.39-352,667,728.38

Finding the Fourth Proportional to 819,131,886.95, 1,228,563,309.39 and 352,667,728.38

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Solution

The fourth proportional to 819,131,886.95, 1,228,563,309.39 and 352,667,728.38 is: 528,943,676.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    819,131,886.95 : 1,228,563,309.39 = 352,667,728.38 : x
  2. Step 2: Convert to fraction form
    819,131,886.95/1,228,563,309.39 = 352,667,728.38/x
  3. Step 3: Cross multiply
    819,131,886.95x = 1,228,563,309.39 × 352,667,728.38
  4. Step 4: Simplify right side
    819,131,886.95x = 433,274,631,493,586,432
  5. Step 5: Solve for x
    x = 433,274,631,493,586,432/819,131,886.95
  6. Step 6: Final answer
    x = 528,943,676.10

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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.