Home / 12,315,060.60-18,472,590.90-11,811,175.80

Finding the Fourth Proportional to 12,315,060.60, 18,472,590.90 and 11,811,175.80

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Solution

The fourth proportional to 12,315,060.60, 18,472,590.90 and 11,811,175.80 is: 17,716,763.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,315,060.60 : 18,472,590.90 = 11,811,175.80 : x
  2. Step 2: Convert to fraction form
    12,315,060.60/18,472,590.90 = 11,811,175.80/x
  3. Step 3: Cross multiply
    12,315,060.60x = 18,472,590.90 × 11,811,175.80
  4. Step 4: Simplify right side
    12,315,060.60x = 218,183,018,601,380.22
  5. Step 5: Solve for x
    x = 218,183,018,601,380.22/12,315,060.60
  6. Step 6: Final answer
    x = 17,716,763.70

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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.