Home / 15,406,991.70-21,261,387.11-8,531,326.14

Finding the Fourth Proportional to 15,406,991.70, 21,261,387.11 and 8,531,326.14

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Solution

The fourth proportional to 15,406,991.70, 21,261,387.11 and 8,531,326.14 is: 11,773,085.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,406,991.70 : 21,261,387.11 = 8,531,326.14 : x
  2. Step 2: Convert to fraction form
    15,406,991.70/21,261,387.11 = 8,531,326.14/x
  3. Step 3: Cross multiply
    15,406,991.70x = 21,261,387.11 × 8,531,326.14
  4. Step 4: Simplify right side
    15,406,991.70x = 181,387,827,581,545.44
  5. Step 5: Solve for x
    x = 181,387,827,581,545.44/15,406,991.70
  6. Step 6: Final answer
    x = 11,773,085.31

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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.