Home / 14,262,979.20-21,408,465.60-7,082,620.80

Finding the Fourth Proportional to 14,262,979.20, 21,408,465.60 and 7,082,620.80

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Solution

The fourth proportional to 14,262,979.20, 21,408,465.60 and 7,082,620.80 is: 10,630,881.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,262,979.20 : 21,408,465.60 = 7,082,620.80 : x
  2. Step 2: Convert to fraction form
    14,262,979.20/21,408,465.60 = 7,082,620.80/x
  3. Step 3: Cross multiply
    14,262,979.20x = 21,408,465.60 × 7,082,620.80
  4. Step 4: Simplify right side
    14,262,979.20x = 151,628,043,754,644.50
  5. Step 5: Solve for x
    x = 151,628,043,754,644.50/14,262,979.20
  6. Step 6: Final answer
    x = 10,630,881.64

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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.