Home / 12,186,548.16-16,789,172.03-8,509,640.74

Finding the Fourth Proportional to 12,186,548.16, 16,789,172.03 and 8,509,640.74

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Solution

The fourth proportional to 12,186,548.16, 16,789,172.03 and 8,509,640.74 is: 11,723,567.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,186,548.16 : 16,789,172.03 = 8,509,640.74 : x
  2. Step 2: Convert to fraction form
    12,186,548.16/16,789,172.03 = 8,509,640.74/x
  3. Step 3: Cross multiply
    12,186,548.16x = 16,789,172.03 × 8,509,640.74
  4. Step 4: Simplify right side
    12,186,548.16x = 142,869,822,297,356.53
  5. Step 5: Solve for x
    x = 142,869,822,297,356.53/12,186,548.16
  6. Step 6: Final answer
    x = 11,723,567.69

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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.