Home / 12,457,181.80-18,685,772.70-11,449,412.20

Finding the Fourth Proportional to 12,457,181.80, 18,685,772.70 and 11,449,412.20

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Solution

The fourth proportional to 12,457,181.80, 18,685,772.70 and 11,449,412.20 is: 17,174,118.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,457,181.80 : 18,685,772.70 = 11,449,412.20 : x
  2. Step 2: Convert to fraction form
    12,457,181.80/18,685,772.70 = 11,449,412.20/x
  3. Step 3: Cross multiply
    12,457,181.80x = 18,685,772.70 × 11,449,412.20
  4. Step 4: Simplify right side
    12,457,181.80x = 213,941,113,917,806.91
  5. Step 5: Solve for x
    x = 213,941,113,917,806.91/12,457,181.80
  6. Step 6: Final answer
    x = 17,174,118.30

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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.