Home / 13,984,378.72-19,298,803.44-7,873,025.92

Finding the Fourth Proportional to 13,984,378.72, 19,298,803.44 and 7,873,025.92

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Solution

The fourth proportional to 13,984,378.72, 19,298,803.44 and 7,873,025.92 is: 10,864,978.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,984,378.72 : 19,298,803.44 = 7,873,025.92 : x
  2. Step 2: Convert to fraction form
    13,984,378.72/19,298,803.44 = 7,873,025.92/x
  3. Step 3: Cross multiply
    13,984,378.72x = 19,298,803.44 × 7,873,025.92
  4. Step 4: Simplify right side
    13,984,378.72x = 151,939,979,708,105.19
  5. Step 5: Solve for x
    x = 151,939,979,708,105.19/13,984,378.72
  6. Step 6: Final answer
    x = 10,864,978.90

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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.