Home / 12,462,667.40-18,694,001.10-7,087,896.20

Finding the Fourth Proportional to 12,462,667.40, 18,694,001.10 and 7,087,896.20

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Solution

The fourth proportional to 12,462,667.40, 18,694,001.10 and 7,087,896.20 is: 10,631,844.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,462,667.40 : 18,694,001.10 = 7,087,896.20 : x
  2. Step 2: Convert to fraction form
    12,462,667.40/18,694,001.10 = 7,087,896.20/x
  3. Step 3: Cross multiply
    12,462,667.40x = 18,694,001.10 × 7,087,896.20
  4. Step 4: Simplify right side
    12,462,667.40x = 132,501,139,359,485.83
  5. Step 5: Solve for x
    x = 132,501,139,359,485.83/12,462,667.40
  6. Step 6: Final answer
    x = 10,631,844.30

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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.