Home / 15,642,619.29-21,589,039.08-8,674,846.47

Finding the Fourth Proportional to 15,642,619.29, 21,589,039.08 and 8,674,846.47

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Solution

The fourth proportional to 15,642,619.29, 21,589,039.08 and 8,674,846.47 is: 11,972,521.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,642,619.29 : 21,589,039.08 = 8,674,846.47 : x
  2. Step 2: Convert to fraction form
    15,642,619.29/21,589,039.08 = 8,674,846.47/x
  3. Step 3: Cross multiply
    15,642,619.29x = 21,589,039.08 × 8,674,846.47
  4. Step 4: Simplify right side
    15,642,619.29x = 187,281,599,453,830.03
  5. Step 5: Solve for x
    x = 187,281,599,453,830.03/15,642,619.29
  6. Step 6: Final answer
    x = 11,972,521.74

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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.