Home / 72,434,986.80-108,778,451.40-38,422,762.80

Finding the Fourth Proportional to 72,434,986.80, 108,778,451.40 and 38,422,762.80

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Solution

The fourth proportional to 72,434,986.80, 108,778,451.40 and 38,422,762.80 is: 57,700,964.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,434,986.80 : 108,778,451.40 = 38,422,762.80 : x
  2. Step 2: Convert to fraction form
    72,434,986.80/108,778,451.40 = 38,422,762.80/x
  3. Step 3: Cross multiply
    72,434,986.80x = 108,778,451.40 × 38,422,762.80
  4. Step 4: Simplify right side
    72,434,986.80x = 4,179,568,635,893,528
  5. Step 5: Solve for x
    x = 4,179,568,635,893,528/72,434,986.80
  6. Step 6: Final answer
    x = 57,700,964.97

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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.