Home / 20,828,994.87-31,248,480.59-8,691,706.61

Finding the Fourth Proportional to 20,828,994.87, 31,248,480.59 and 8,691,706.61

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Solution

The fourth proportional to 20,828,994.87, 31,248,480.59 and 8,691,706.61 is: 13,039,641.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,828,994.87 : 31,248,480.59 = 8,691,706.61 : x
  2. Step 2: Convert to fraction form
    20,828,994.87/31,248,480.59 = 8,691,706.61/x
  3. Step 3: Cross multiply
    20,828,994.87x = 31,248,480.59 × 8,691,706.61
  4. Step 4: Simplify right side
    20,828,994.87x = 271,602,625,296,559.69
  5. Step 5: Solve for x
    x = 271,602,625,296,559.69/20,828,994.87
  6. Step 6: Final answer
    x = 13,039,641.47

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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.