Home / 72,183,717.60-108,275,576.40-69,632,800.80

Finding the Fourth Proportional to 72,183,717.60, 108,275,576.40 and 69,632,800.80

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Solution

The fourth proportional to 72,183,717.60, 108,275,576.40 and 69,632,800.80 is: 104,449,201.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,183,717.60 : 108,275,576.40 = 69,632,800.80 : x
  2. Step 2: Convert to fraction form
    72,183,717.60/108,275,576.40 = 69,632,800.80/x
  3. Step 3: Cross multiply
    72,183,717.60x = 108,275,576.40 × 69,632,800.80
  4. Step 4: Simplify right side
    72,183,717.60x = 7,539,531,642,966,381
  5. Step 5: Solve for x
    x = 7,539,531,642,966,381/72,183,717.60
  6. Step 6: Final answer
    x = 104,449,201.20

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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.