Home / 13,642,720.40-20,464,080.60-8,186,592.80

Finding the Fourth Proportional to 13,642,720.40, 20,464,080.60 and 8,186,592.80

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Solution

The fourth proportional to 13,642,720.40, 20,464,080.60 and 8,186,592.80 is: 12,279,889.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,642,720.40 : 20,464,080.60 = 8,186,592.80 : x
  2. Step 2: Convert to fraction form
    13,642,720.40/20,464,080.60 = 8,186,592.80/x
  3. Step 3: Cross multiply
    13,642,720.40x = 20,464,080.60 × 8,186,592.80
  4. Step 4: Simplify right side
    13,642,720.40x = 167,531,094,898,579.69
  5. Step 5: Solve for x
    x = 167,531,094,898,579.69/13,642,720.40
  6. Step 6: Final answer
    x = 12,279,889.20

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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.