Home / 12,500,872.80-18,737,312.40-7,112,104.80

Finding the Fourth Proportional to 12,500,872.80, 18,737,312.40 and 7,112,104.80

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Solution

The fourth proportional to 12,500,872.80, 18,737,312.40 and 7,112,104.80 is: 10,660,194.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,500,872.80 : 18,737,312.40 = 7,112,104.80 : x
  2. Step 2: Convert to fraction form
    12,500,872.80/18,737,312.40 = 7,112,104.80/x
  3. Step 3: Cross multiply
    12,500,872.80x = 18,737,312.40 × 7,112,104.80
  4. Step 4: Simplify right side
    12,500,872.80x = 133,261,729,459,139.50
  5. Step 5: Solve for x
    x = 133,261,729,459,139.50/12,500,872.80
  6. Step 6: Final answer
    x = 10,660,194.02

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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.