Home / 12,230,429.10-18,345,643.65-3,132,509.10

Finding the Fourth Proportional to 12,230,429.10, 18,345,643.65 and 3,132,509.10

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Solution

The fourth proportional to 12,230,429.10, 18,345,643.65 and 3,132,509.10 is: 4,698,763.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,230,429.10 : 18,345,643.65 = 3,132,509.10 : x
  2. Step 2: Convert to fraction form
    12,230,429.10/18,345,643.65 = 3,132,509.10/x
  3. Step 3: Cross multiply
    12,230,429.10x = 18,345,643.65 × 3,132,509.10
  4. Step 4: Simplify right side
    12,230,429.10x = 57,467,895,678,982.21
  5. Step 5: Solve for x
    x = 57,467,895,678,982.21/12,230,429.10
  6. Step 6: Final answer
    x = 4,698,763.65

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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.