Home / 9,866,189.80-13,615,396.54-5,515,459.48

Finding the Fourth Proportional to 9,866,189.80, 13,615,396.54 and 5,515,459.48

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Solution

The fourth proportional to 9,866,189.80, 13,615,396.54 and 5,515,459.48 is: 7,611,364.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,866,189.80 : 13,615,396.54 = 5,515,459.48 : x
  2. Step 2: Convert to fraction form
    9,866,189.80/13,615,396.54 = 5,515,459.48/x
  3. Step 3: Cross multiply
    9,866,189.80x = 13,615,396.54 × 5,515,459.48
  4. Step 4: Simplify right side
    9,866,189.80x = 75,095,167,920,502.20
  5. Step 5: Solve for x
    x = 75,095,167,920,502.20/9,866,189.80
  6. Step 6: Final answer
    x = 7,611,364.61

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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.