Home / 15,870,957.32-21,902,148.06-11,890,175.14

Finding the Fourth Proportional to 15,870,957.32, 21,902,148.06 and 11,890,175.14

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Solution

The fourth proportional to 15,870,957.32, 21,902,148.06 and 11,890,175.14 is: 16,408,611.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,870,957.32 : 21,902,148.06 = 11,890,175.14 : x
  2. Step 2: Convert to fraction form
    15,870,957.32/21,902,148.06 = 11,890,175.14/x
  3. Step 3: Cross multiply
    15,870,957.32x = 21,902,148.06 × 11,890,175.14
  4. Step 4: Simplify right side
    15,870,957.32x = 260,420,376,335,518.56
  5. Step 5: Solve for x
    x = 260,420,376,335,518.56/15,870,957.32
  6. Step 6: Final answer
    x = 16,408,611.72

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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.