Home / 13,731,039.24-18,949,719.89-7,619,467.74

Finding the Fourth Proportional to 13,731,039.24, 18,949,719.89 and 7,619,467.74

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Solution

The fourth proportional to 13,731,039.24, 18,949,719.89 and 7,619,467.74 is: 10,515,356.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,731,039.24 : 18,949,719.89 = 7,619,467.74 : x
  2. Step 2: Convert to fraction form
    13,731,039.24/18,949,719.89 = 7,619,467.74/x
  3. Step 3: Cross multiply
    13,731,039.24x = 18,949,719.89 × 7,619,467.74
  4. Step 4: Simplify right side
    13,731,039.24x = 144,386,779,345,794.03
  5. Step 5: Solve for x
    x = 144,386,779,345,794.03/13,731,039.24
  6. Step 6: Final answer
    x = 10,515,356.98

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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.