Home / 12,611,605.80-17,406,848.94-8,258,163.72

Finding the Fourth Proportional to 12,611,605.80, 17,406,848.94 and 8,258,163.72

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Solution

The fourth proportional to 12,611,605.80, 17,406,848.94 and 8,258,163.72 is: 11,398,120.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,611,605.80 : 17,406,848.94 = 8,258,163.72 : x
  2. Step 2: Convert to fraction form
    12,611,605.80/17,406,848.94 = 8,258,163.72/x
  3. Step 3: Cross multiply
    12,611,605.80x = 17,406,848.94 × 8,258,163.72
  4. Step 4: Simplify right side
    12,611,605.80x = 143,748,608,395,828.47
  5. Step 5: Solve for x
    x = 143,748,608,395,828.47/12,611,605.80
  6. Step 6: Final answer
    x = 11,398,120.96

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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.