Home / 12,381,056.63-18,561,817.44-7,822,496.90

Finding the Fourth Proportional to 12,381,056.63, 18,561,817.44 and 7,822,496.90

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Solution

The fourth proportional to 12,381,056.63, 18,561,817.44 and 7,822,496.90 is: 11,727,574.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,381,056.63 : 18,561,817.44 = 7,822,496.90 : x
  2. Step 2: Convert to fraction form
    12,381,056.63/18,561,817.44 = 7,822,496.90/x
  3. Step 3: Cross multiply
    12,381,056.63x = 18,561,817.44 × 7,822,496.90
  4. Step 4: Simplify right side
    12,381,056.63x = 145,199,759,429,170.50
  5. Step 5: Solve for x
    x = 145,199,759,429,170.50/12,381,056.63
  6. Step 6: Final answer
    x = 11,727,574.13

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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.