Home / 15,406,991.81-21,261,387.29-8,531,326.25

Finding the Fourth Proportional to 15,406,991.81, 21,261,387.29 and 8,531,326.25

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Solution

The fourth proportional to 15,406,991.81, 21,261,387.29 and 8,531,326.25 is: 11,773,085.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,406,991.81 : 21,261,387.29 = 8,531,326.25 : x
  2. Step 2: Convert to fraction form
    15,406,991.81/21,261,387.29 = 8,531,326.25/x
  3. Step 3: Cross multiply
    15,406,991.81x = 21,261,387.29 × 8,531,326.25
  4. Step 4: Simplify right side
    15,406,991.81x = 181,387,831,455,936.72
  5. Step 5: Solve for x
    x = 181,387,831,455,936.72/15,406,991.81
  6. Step 6: Final answer
    x = 11,773,085.47

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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.