Home / 19,421,995.20-29,132,992.80-6,642,916.80

Finding the Fourth Proportional to 19,421,995.20, 29,132,992.80 and 6,642,916.80

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Solution

The fourth proportional to 19,421,995.20, 29,132,992.80 and 6,642,916.80 is: 9,964,375.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,421,995.20 : 29,132,992.80 = 6,642,916.80 : x
  2. Step 2: Convert to fraction form
    19,421,995.20/29,132,992.80 = 6,642,916.80/x
  3. Step 3: Cross multiply
    19,421,995.20x = 29,132,992.80 × 6,642,916.80
  4. Step 4: Simplify right side
    19,421,995.20x = 193,528,047,305,399.03
  5. Step 5: Solve for x
    x = 193,528,047,305,399.03/19,421,995.20
  6. Step 6: Final answer
    x = 9,964,375.20

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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.