Home / 12,660,112.32-18,992,501.28-4,140,901.68

Finding the Fourth Proportional to 12,660,112.32, 18,992,501.28 and 4,140,901.68

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Solution

The fourth proportional to 12,660,112.32, 18,992,501.28 and 4,140,901.68 is: 6,212,115.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,660,112.32 : 18,992,501.28 = 4,140,901.68 : x
  2. Step 2: Convert to fraction form
    12,660,112.32/18,992,501.28 = 4,140,901.68/x
  3. Step 3: Cross multiply
    12,660,112.32x = 18,992,501.28 × 4,140,901.68
  4. Step 4: Simplify right side
    12,660,112.32x = 78,646,080,457,754.16
  5. Step 5: Solve for x
    x = 78,646,080,457,754.16/12,660,112.32
  6. Step 6: Final answer
    x = 6,212,115.54

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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.