Home / 12,406,415.10-18,609,622.65-9,217,769.10

Finding the Fourth Proportional to 12,406,415.10, 18,609,622.65 and 9,217,769.10

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Solution

The fourth proportional to 12,406,415.10, 18,609,622.65 and 9,217,769.10 is: 13,826,653.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,406,415.10 : 18,609,622.65 = 9,217,769.10 : x
  2. Step 2: Convert to fraction form
    12,406,415.10/18,609,622.65 = 9,217,769.10/x
  3. Step 3: Cross multiply
    12,406,415.10x = 18,609,622.65 × 9,217,769.10
  4. Step 4: Simplify right side
    12,406,415.10x = 171,539,204,625,830.09
  5. Step 5: Solve for x
    x = 171,539,204,625,830.09/12,406,415.10
  6. Step 6: Final answer
    x = 13,826,653.65

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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.