Home / 100,930,090.38-139,283,417.77-54,520,336.86

Finding the Fourth Proportional to 100,930,090.38, 139,283,417.77 and 54,520,336.86

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Solution

The fourth proportional to 100,930,090.38, 139,283,417.77 and 54,520,336.86 is: 75,238,007.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,930,090.38 : 139,283,417.77 = 54,520,336.86 : x
  2. Step 2: Convert to fraction form
    100,930,090.38/139,283,417.77 = 54,520,336.86/x
  3. Step 3: Cross multiply
    100,930,090.38x = 139,283,417.77 × 54,520,336.86
  4. Step 4: Simplify right side
    100,930,090.38x = 7,593,778,855,832,511
  5. Step 5: Solve for x
    x = 7,593,778,855,832,511/100,930,090.38
  6. Step 6: Final answer
    x = 75,238,007.09

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.