Home / 519,034,890,822.28-778,776,071,053.74-280,222,123,889.72

Finding the Fourth Proportional to 519,034,890,822.28, 778,776,071,053.74 and 280,222,123,889.72

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Solution

The fourth proportional to 519,034,890,822.28, 778,776,071,053.74 and 280,222,123,889.72 is: 420,453,978,189.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    519,034,890,822.28 : 778,776,071,053.74 = 280,222,123,889.72 : x
  2. Step 2: Convert to fraction form
    519,034,890,822.28/778,776,071,053.74 = 280,222,123,889.72/x
  3. Step 3: Cross multiply
    519,034,890,822.28x = 778,776,071,053.74 × 280,222,123,889.72
  4. Step 4: Simplify right side
    519,034,890,822.28x = 218,230,284,665,170,505,498,624
  5. Step 5: Solve for x
    x = 218,230,284,665,170,505,498,624/519,034,890,822.28
  6. Step 6: Final answer
    x = 420,453,978,189.10

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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.