Home / 12,208,316.20-18,312,474.30-9,382,690.60

Finding the Fourth Proportional to 12,208,316.20, 18,312,474.30 and 9,382,690.60

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Solution

The fourth proportional to 12,208,316.20, 18,312,474.30 and 9,382,690.60 is: 14,074,035.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,208,316.20 : 18,312,474.30 = 9,382,690.60 : x
  2. Step 2: Convert to fraction form
    12,208,316.20/18,312,474.30 = 9,382,690.60/x
  3. Step 3: Cross multiply
    12,208,316.20x = 18,312,474.30 × 9,382,690.60
  4. Step 4: Simplify right side
    12,208,316.20x = 171,820,280,477,351.59
  5. Step 5: Solve for x
    x = 171,820,280,477,351.59/12,208,316.20
  6. Step 6: Final answer
    x = 14,074,035.90

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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.