Home / 15,406,983.07-21,261,375.21-8,531,317.51

Finding the Fourth Proportional to 15,406,983.07, 21,261,375.21 and 8,531,317.51

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Solution

The fourth proportional to 15,406,983.07, 21,261,375.21 and 8,531,317.51 is: 11,773,073.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,406,983.07 : 21,261,375.21 = 8,531,317.51 : x
  2. Step 2: Convert to fraction form
    15,406,983.07/21,261,375.21 = 8,531,317.51/x
  3. Step 3: Cross multiply
    15,406,983.07x = 21,261,375.21 × 8,531,317.51
  4. Step 4: Simplify right side
    15,406,983.07x = 181,387,542,594,591.94
  5. Step 5: Solve for x
    x = 181,387,542,594,591.94/15,406,983.07
  6. Step 6: Final answer
    x = 11,773,073.40

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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.