Home / 79,346,714.80-118,992,078.60-28,230,401.20

Finding the Fourth Proportional to 79,346,714.80, 118,992,078.60 and 28,230,401.20

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Solution

The fourth proportional to 79,346,714.80, 118,992,078.60 and 28,230,401.20 is: 42,335,642.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,346,714.80 : 118,992,078.60 = 28,230,401.20 : x
  2. Step 2: Convert to fraction form
    79,346,714.80/118,992,078.60 = 28,230,401.20/x
  3. Step 3: Cross multiply
    79,346,714.80x = 118,992,078.60 × 28,230,401.20
  4. Step 4: Simplify right side
    79,346,714.80x = 3,359,194,118,499,934
  5. Step 5: Solve for x
    x = 3,359,194,118,499,934/79,346,714.80
  6. Step 6: Final answer
    x = 42,335,642.09

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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.