Home / 90,292,189.86-135,403,626.42-38,443,920.66

Finding the Fourth Proportional to 90,292,189.86, 135,403,626.42 and 38,443,920.66

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Solution

The fourth proportional to 90,292,189.86, 135,403,626.42 and 38,443,920.66 is: 57,651,124.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,292,189.86 : 135,403,626.42 = 38,443,920.66 : x
  2. Step 2: Convert to fraction form
    90,292,189.86/135,403,626.42 = 38,443,920.66/x
  3. Step 3: Cross multiply
    90,292,189.86x = 135,403,626.42 × 38,443,920.66
  4. Step 4: Simplify right side
    90,292,189.86x = 5,205,446,271,166,759
  5. Step 5: Solve for x
    x = 5,205,446,271,166,759/90,292,189.86
  6. Step 6: Final answer
    x = 57,651,124.41

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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.