Home / 6,620,838.76-9,136,465.86-3,867,781.06

Finding the Fourth Proportional to 6,620,838.76, 9,136,465.86 and 3,867,781.06

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Solution

The fourth proportional to 6,620,838.76, 9,136,465.86 and 3,867,781.06 is: 5,337,367.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,620,838.76 : 9,136,465.86 = 3,867,781.06 : x
  2. Step 2: Convert to fraction form
    6,620,838.76/9,136,465.86 = 3,867,781.06/x
  3. Step 3: Cross multiply
    6,620,838.76x = 9,136,465.86 × 3,867,781.06
  4. Step 4: Simplify right side
    6,620,838.76x = 35,337,849,608,644.61
  5. Step 5: Solve for x
    x = 35,337,849,608,644.61/6,620,838.76
  6. Step 6: Final answer
    x = 5,337,367.50

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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.