Home / 12,731,129.76-19,096,507.38-3,146,509.20

Finding the Fourth Proportional to 12,731,129.76, 19,096,507.38 and 3,146,509.20

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Solution

The fourth proportional to 12,731,129.76, 19,096,507.38 and 3,146,509.20 is: 4,719,717.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,731,129.76 : 19,096,507.38 = 3,146,509.20 : x
  2. Step 2: Convert to fraction form
    12,731,129.76/19,096,507.38 = 3,146,509.20/x
  3. Step 3: Cross multiply
    12,731,129.76x = 19,096,507.38 × 3,146,509.20
  4. Step 4: Simplify right side
    12,731,129.76x = 60,087,336,159,037.90
  5. Step 5: Solve for x
    x = 60,087,336,159,037.90/12,731,129.76
  6. Step 6: Final answer
    x = 4,719,717.52

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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.