Home / 114,618,832.40-171,928,248.60-78,339,126.80

Finding the Fourth Proportional to 114,618,832.40, 171,928,248.60 and 78,339,126.80

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Solution

The fourth proportional to 114,618,832.40, 171,928,248.60 and 78,339,126.80 is: 117,508,690.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    114,618,832.40 : 171,928,248.60 = 78,339,126.80 : x
  2. Step 2: Convert to fraction form
    114,618,832.40/171,928,248.60 = 78,339,126.80/x
  3. Step 3: Cross multiply
    114,618,832.40x = 171,928,248.60 × 78,339,126.80
  4. Step 4: Simplify right side
    114,618,832.40x = 13,468,708,867,577,322
  5. Step 5: Solve for x
    x = 13,468,708,867,577,322/114,618,832.40
  6. Step 6: Final answer
    x = 117,508,690.20

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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.