Home / 86,184,426.80-129,276,640.20-66,910,833.20

Finding the Fourth Proportional to 86,184,426.80, 129,276,640.20 and 66,910,833.20

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Solution

The fourth proportional to 86,184,426.80, 129,276,640.20 and 66,910,833.20 is: 100,366,249.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,184,426.80 : 129,276,640.20 = 66,910,833.20 : x
  2. Step 2: Convert to fraction form
    86,184,426.80/129,276,640.20 = 66,910,833.20/x
  3. Step 3: Cross multiply
    86,184,426.80x = 129,276,640.20 × 66,910,833.20
  4. Step 4: Simplify right side
    86,184,426.80x = 8,650,007,709,078,615
  5. Step 5: Solve for x
    x = 8,650,007,709,078,615/86,184,426.80
  6. Step 6: Final answer
    x = 100,366,249.80

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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.