Home / 12,116,914.40-18,158,700-5,192,104.16

Finding the Fourth Proportional to 12,116,914.40, 18,158,700 and 5,192,104.16

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Solution

The fourth proportional to 12,116,914.40, 18,158,700 and 5,192,104.16 is: 7,781,012.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,116,914.40 : 18,158,700 = 5,192,104.16 : x
  2. Step 2: Convert to fraction form
    12,116,914.40/18,158,700 = 5,192,104.16/x
  3. Step 3: Cross multiply
    12,116,914.40x = 18,158,700 × 5,192,104.16
  4. Step 4: Simplify right side
    12,116,914.40x = 94,281,861,810,192
  5. Step 5: Solve for x
    x = 94,281,861,810,192/12,116,914.40
  6. Step 6: Final answer
    x = 7,781,012.45

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.