Home / 12,129,487.62-16,737,972.57-6,621,764.10

Finding the Fourth Proportional to 12,129,487.62, 16,737,972.57 and 6,621,764.10

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Solution

The fourth proportional to 12,129,487.62, 16,737,972.57 and 6,621,764.10 is: 9,137,641.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,129,487.62 : 16,737,972.57 = 6,621,764.10 : x
  2. Step 2: Convert to fraction form
    12,129,487.62/16,737,972.57 = 6,621,764.10/x
  3. Step 3: Cross multiply
    12,129,487.62x = 16,737,972.57 × 6,621,764.10
  4. Step 4: Simplify right side
    12,129,487.62x = 110,834,905,870,810.73
  5. Step 5: Solve for x
    x = 110,834,905,870,810.73/12,129,487.62
  6. Step 6: Final answer
    x = 9,137,641.20

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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.