Home / 48,278,587.80-72,430,712.10-20,973,163.80

Finding the Fourth Proportional to 48,278,587.80, 72,430,712.10 and 20,973,163.80

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Solution

The fourth proportional to 48,278,587.80, 72,430,712.10 and 20,973,163.80 is: 31,465,319.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,278,587.80 : 72,430,712.10 = 20,973,163.80 : x
  2. Step 2: Convert to fraction form
    48,278,587.80/72,430,712.10 = 20,973,163.80/x
  3. Step 3: Cross multiply
    48,278,587.80x = 72,430,712.10 × 20,973,163.80
  4. Step 4: Simplify right side
    48,278,587.80x = 1,519,101,189,023,942
  5. Step 5: Solve for x
    x = 1,519,101,189,023,942/48,278,587.80
  6. Step 6: Final answer
    x = 31,465,319.48

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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.