Home / 75,272,499.60-112,909,987.35-20,684,743.80

Finding the Fourth Proportional to 75,272,499.60, 112,909,987.35 and 20,684,743.80

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Solution

The fourth proportional to 75,272,499.60, 112,909,987.35 and 20,684,743.80 is: 31,027,455.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,272,499.60 : 112,909,987.35 = 20,684,743.80 : x
  2. Step 2: Convert to fraction form
    75,272,499.60/112,909,987.35 = 20,684,743.80/x
  3. Step 3: Cross multiply
    75,272,499.60x = 112,909,987.35 × 20,684,743.80
  4. Step 4: Simplify right side
    75,272,499.60x = 2,335,514,160,795,991
  5. Step 5: Solve for x
    x = 2,335,514,160,795,991/75,272,499.60
  6. Step 6: Final answer
    x = 31,027,455.89

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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.