Home / 12,116,864.80-18,175,297.20-11,124,841.60

Finding the Fourth Proportional to 12,116,864.80, 18,175,297.20 and 11,124,841.60

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Solution

The fourth proportional to 12,116,864.80, 18,175,297.20 and 11,124,841.60 is: 16,687,262.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,116,864.80 : 18,175,297.20 = 11,124,841.60 : x
  2. Step 2: Convert to fraction form
    12,116,864.80/18,175,297.20 = 11,124,841.60/x
  3. Step 3: Cross multiply
    12,116,864.80x = 18,175,297.20 × 11,124,841.60
  4. Step 4: Simplify right side
    12,116,864.80x = 202,197,302,382,923.50
  5. Step 5: Solve for x
    x = 202,197,302,382,923.50/12,116,864.80
  6. Step 6: Final answer
    x = 16,687,262.40

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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.