Home / 72,608,107.08-100,199,208.60-39,568,365.30

Finding the Fourth Proportional to 72,608,107.08, 100,199,208.60 and 39,568,365.30

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Solution

The fourth proportional to 72,608,107.08, 100,199,208.60 and 39,568,365.30 is: 54,604,355.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,608,107.08 : 100,199,208.60 = 39,568,365.30 : x
  2. Step 2: Convert to fraction form
    72,608,107.08/100,199,208.60 = 39,568,365.30/x
  3. Step 3: Cross multiply
    72,608,107.08x = 100,199,208.60 × 39,568,365.30
  4. Step 4: Simplify right side
    72,608,107.08x = 3,964,718,888,655,701
  5. Step 5: Solve for x
    x = 3,964,718,888,655,701/72,608,107.08
  6. Step 6: Final answer
    x = 54,604,355.47

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.