Home / 53,146,249.21-79,719,374.78-12,756,733.21

Finding the Fourth Proportional to 53,146,249.21, 79,719,374.78 and 12,756,733.21

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Solution

The fourth proportional to 53,146,249.21, 79,719,374.78 and 12,756,733.21 is: 19,135,100.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,146,249.21 : 79,719,374.78 = 12,756,733.21 : x
  2. Step 2: Convert to fraction form
    53,146,249.21/79,719,374.78 = 12,756,733.21/x
  3. Step 3: Cross multiply
    53,146,249.21x = 79,719,374.78 × 12,756,733.21
  4. Step 4: Simplify right side
    53,146,249.21x = 1,016,958,795,736,462.50
  5. Step 5: Solve for x
    x = 1,016,958,795,736,462.50/53,146,249.21
  6. Step 6: Final answer
    x = 19,135,100.05

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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.