Home / 13,716,881.32-18,920,620.02-8,813,675.80

Finding the Fourth Proportional to 13,716,881.32, 18,920,620.02 and 8,813,675.80

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Solution

The fourth proportional to 13,716,881.32, 18,920,620.02 and 8,813,675.80 is: 12,157,297.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,716,881.32 : 18,920,620.02 = 8,813,675.80 : x
  2. Step 2: Convert to fraction form
    13,716,881.32/18,920,620.02 = 8,813,675.80/x
  3. Step 3: Cross multiply
    13,716,881.32x = 18,920,620.02 × 8,813,675.80
  4. Step 4: Simplify right side
    13,716,881.32x = 166,760,210,791,269.53
  5. Step 5: Solve for x
    x = 166,760,210,791,269.53/13,716,881.32
  6. Step 6: Final answer
    x = 12,157,297.78

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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.