Home / 15,406,722.16-21,261,016.82-8,531,056.60

Finding the Fourth Proportional to 15,406,722.16, 21,261,016.82 and 8,531,056.60

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Solution

The fourth proportional to 15,406,722.16, 21,261,016.82 and 8,531,056.60 is: 11,772,714.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,406,722.16 : 21,261,016.82 = 8,531,056.60 : x
  2. Step 2: Convert to fraction form
    15,406,722.16/21,261,016.82 = 8,531,056.60/x
  3. Step 3: Cross multiply
    15,406,722.16x = 21,261,016.82 × 8,531,056.60
  4. Step 4: Simplify right side
    15,406,722.16x = 181,378,937,864,972
  5. Step 5: Solve for x
    x = 181,378,937,864,972/15,406,722.16
  6. Step 6: Final answer
    x = 11,772,714.27

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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.