Home / 30,691,809.77-42,354,701.15-16,940,777.54

Finding the Fourth Proportional to 30,691,809.77, 42,354,701.15 and 16,940,777.54

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Solution

The fourth proportional to 30,691,809.77, 42,354,701.15 and 16,940,777.54 is: 23,378,275.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,691,809.77 : 42,354,701.15 = 16,940,777.54 : x
  2. Step 2: Convert to fraction form
    30,691,809.77/42,354,701.15 = 16,940,777.54/x
  3. Step 3: Cross multiply
    30,691,809.77x = 42,354,701.15 × 16,940,777.54
  4. Step 4: Simplify right side
    30,691,809.77x = 717,521,569,658,854.88
  5. Step 5: Solve for x
    x = 717,521,569,658,854.88/30,691,809.77
  6. Step 6: Final answer
    x = 23,378,275.02

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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.