Home / 12,309,260.80-18,463,891.20-8,908,038.40

Finding the Fourth Proportional to 12,309,260.80, 18,463,891.20 and 8,908,038.40

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Solution

The fourth proportional to 12,309,260.80, 18,463,891.20 and 8,908,038.40 is: 13,362,057.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,309,260.80 : 18,463,891.20 = 8,908,038.40 : x
  2. Step 2: Convert to fraction form
    12,309,260.80/18,463,891.20 = 8,908,038.40/x
  3. Step 3: Cross multiply
    12,309,260.80x = 18,463,891.20 × 8,908,038.40
  4. Step 4: Simplify right side
    12,309,260.80x = 164,477,051,823,022.09
  5. Step 5: Solve for x
    x = 164,477,051,823,022.09/12,309,260.80
  6. Step 6: Final answer
    x = 13,362,057.60

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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.