Home / 43,287,588.56-64,916,067.12-12,575,778.40

Finding the Fourth Proportional to 43,287,588.56, 64,916,067.12 and 12,575,778.40

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Solution

The fourth proportional to 43,287,588.56, 64,916,067.12 and 12,575,778.40 is: 18,859,218.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,287,588.56 : 64,916,067.12 = 12,575,778.40 : x
  2. Step 2: Convert to fraction form
    43,287,588.56/64,916,067.12 = 12,575,778.40/x
  3. Step 3: Cross multiply
    43,287,588.56x = 64,916,067.12 × 12,575,778.40
  4. Step 4: Simplify right side
    43,287,588.56x = 816,370,074,700,646.25
  5. Step 5: Solve for x
    x = 816,370,074,700,646.25/43,287,588.56
  6. Step 6: Final answer
    x = 18,859,218.12

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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.