Home / 12,208,276.70-18,312,415.05-9,382,651.10

Finding the Fourth Proportional to 12,208,276.70, 18,312,415.05 and 9,382,651.10

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Solution

The fourth proportional to 12,208,276.70, 18,312,415.05 and 9,382,651.10 is: 14,073,976.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,208,276.70 : 18,312,415.05 = 9,382,651.10 : x
  2. Step 2: Convert to fraction form
    12,208,276.70/18,312,415.05 = 9,382,651.10/x
  3. Step 3: Cross multiply
    12,208,276.70x = 18,312,415.05 × 9,382,651.10
  4. Step 4: Simplify right side
    12,208,276.70x = 171,819,001,212,539.06
  5. Step 5: Solve for x
    x = 171,819,001,212,539.06/12,208,276.70
  6. Step 6: Final answer
    x = 14,073,976.65

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Double scale
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Similar ratio
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1.5x scale

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.