Home / 67,077,815.86-100,616,747.04-21,023,258.20

Finding the Fourth Proportional to 67,077,815.86, 100,616,747.04 and 21,023,258.20

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Solution

The fourth proportional to 67,077,815.86, 100,616,747.04 and 21,023,258.20 is: 31,534,894.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,077,815.86 : 100,616,747.04 = 21,023,258.20 : x
  2. Step 2: Convert to fraction form
    67,077,815.86/100,616,747.04 = 21,023,258.20/x
  3. Step 3: Cross multiply
    67,077,815.86x = 100,616,747.04 × 21,023,258.20
  4. Step 4: Simplify right side
    67,077,815.86x = 2,115,291,852,266,005.75
  5. Step 5: Solve for x
    x = 2,115,291,852,266,005.75/67,077,815.86
  6. Step 6: Final answer
    x = 31,534,894.59

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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.