Home / 324,145,359.35-486,216,412.86-78,501,987.59

Finding the Fourth Proportional to 324,145,359.35, 486,216,412.86 and 78,501,987.59

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Solution

The fourth proportional to 324,145,359.35, 486,216,412.86 and 78,501,987.59 is: 117,752,587.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    324,145,359.35 : 486,216,412.86 = 78,501,987.59 : x
  2. Step 2: Convert to fraction form
    324,145,359.35/486,216,412.86 = 78,501,987.59/x
  3. Step 3: Cross multiply
    324,145,359.35x = 486,216,412.86 × 78,501,987.59
  4. Step 4: Simplify right side
    324,145,359.35x = 38,168,954,806,253,336
  5. Step 5: Solve for x
    x = 38,168,954,806,253,336/324,145,359.35
  6. Step 6: Final answer
    x = 117,752,587.55

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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.