Home / 72,128,047.20-108,262,929.60-35,777,482.80

Finding the Fourth Proportional to 72,128,047.20, 108,262,929.60 and 35,777,482.80

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Solution

The fourth proportional to 72,128,047.20, 108,262,929.60 and 35,777,482.80 is: 53,701,372.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,128,047.20 : 108,262,929.60 = 35,777,482.80 : x
  2. Step 2: Convert to fraction form
    72,128,047.20/108,262,929.60 = 35,777,482.80/x
  3. Step 3: Cross multiply
    72,128,047.20x = 108,262,929.60 × 35,777,482.80
  4. Step 4: Simplify right side
    72,128,047.20x = 3,873,375,101,641,610.50
  5. Step 5: Solve for x
    x = 3,873,375,101,641,610.50/72,128,047.20
  6. Step 6: Final answer
    x = 53,701,372.10

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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.