Home / 15,253,448.20-21,051,056.68-8,639,213.20

Finding the Fourth Proportional to 15,253,448.20, 21,051,056.68 and 8,639,213.20

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Solution

The fourth proportional to 15,253,448.20, 21,051,056.68 and 8,639,213.20 is: 11,922,849.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,253,448.20 : 21,051,056.68 = 8,639,213.20 : x
  2. Step 2: Convert to fraction form
    15,253,448.20/21,051,056.68 = 8,639,213.20/x
  3. Step 3: Cross multiply
    15,253,448.20x = 21,051,056.68 × 8,639,213.20
  4. Step 4: Simplify right side
    15,253,448.20x = 181,864,566,743,804.16
  5. Step 5: Solve for x
    x = 181,864,566,743,804.16/15,253,448.20
  6. Step 6: Final answer
    x = 11,922,849.47

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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.