Home / 75,695,857.47-113,562,936.78-21,108,448.86

Finding the Fourth Proportional to 75,695,857.47, 113,562,936.78 and 21,108,448.86

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Solution

The fourth proportional to 75,695,857.47, 113,562,936.78 and 21,108,448.86 is: 31,668,013.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,695,857.47 : 113,562,936.78 = 21,108,448.86 : x
  2. Step 2: Convert to fraction form
    75,695,857.47/113,562,936.78 = 21,108,448.86/x
  3. Step 3: Cross multiply
    75,695,857.47x = 113,562,936.78 × 21,108,448.86
  4. Step 4: Simplify right side
    75,695,857.47x = 2,397,137,443,412,043
  5. Step 5: Solve for x
    x = 2,397,137,443,412,043/75,695,857.47
  6. Step 6: Final answer
    x = 31,668,013.59

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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.