Home / 12,522,079.60-18,783,119.40-7,714,178.80

Finding the Fourth Proportional to 12,522,079.60, 18,783,119.40 and 7,714,178.80

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Solution

The fourth proportional to 12,522,079.60, 18,783,119.40 and 7,714,178.80 is: 11,571,268.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,522,079.60 : 18,783,119.40 = 7,714,178.80 : x
  2. Step 2: Convert to fraction form
    12,522,079.60/18,783,119.40 = 7,714,178.80/x
  3. Step 3: Cross multiply
    12,522,079.60x = 18,783,119.40 × 7,714,178.80
  4. Step 4: Simplify right side
    12,522,079.60x = 144,896,341,473,348.72
  5. Step 5: Solve for x
    x = 144,896,341,473,348.72/12,522,079.60
  6. Step 6: Final answer
    x = 11,571,268.20

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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.