Home / 19,047,557.76-28,571,181.12-7,687,832.64

Finding the Fourth Proportional to 19,047,557.76, 28,571,181.12 and 7,687,832.64

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Solution

The fourth proportional to 19,047,557.76, 28,571,181.12 and 7,687,832.64 is: 11,531,686.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,047,557.76 : 28,571,181.12 = 7,687,832.64 : x
  2. Step 2: Convert to fraction form
    19,047,557.76/28,571,181.12 = 7,687,832.64/x
  3. Step 3: Cross multiply
    19,047,557.76x = 28,571,181.12 × 7,687,832.64
  4. Step 4: Simplify right side
    19,047,557.76x = 219,650,458,777,687.75
  5. Step 5: Solve for x
    x = 219,650,458,777,687.75/19,047,557.76
  6. Step 6: Final answer
    x = 11,531,686.19

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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.