Home / 15,406,705.85-21,260,993.40-8,531,040.29

Finding the Fourth Proportional to 15,406,705.85, 21,260,993.40 and 8,531,040.29

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Solution

The fourth proportional to 15,406,705.85, 21,260,993.40 and 8,531,040.29 is: 11,772,691.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,406,705.85 : 21,260,993.40 = 8,531,040.29 : x
  2. Step 2: Convert to fraction form
    15,406,705.85/21,260,993.40 = 8,531,040.29/x
  3. Step 3: Cross multiply
    15,406,705.85x = 21,260,993.40 × 8,531,040.29
  4. Step 4: Simplify right side
    15,406,705.85x = 181,378,391,194,519.12
  5. Step 5: Solve for x
    x = 181,378,391,194,519.12/15,406,705.85
  6. Step 6: Final answer
    x = 11,772,691.26

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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.