Home / 15,870,232.51-21,901,160.83-8,902,454.61

Finding the Fourth Proportional to 15,870,232.51, 21,901,160.83 and 8,902,454.61

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Solution

The fourth proportional to 15,870,232.51, 21,901,160.83 and 8,902,454.61 is: 12,285,521.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,870,232.51 : 21,901,160.83 = 8,902,454.61 : x
  2. Step 2: Convert to fraction form
    15,870,232.51/21,901,160.83 = 8,902,454.61/x
  3. Step 3: Cross multiply
    15,870,232.51x = 21,901,160.83 × 8,902,454.61
  4. Step 4: Simplify right side
    15,870,232.51x = 194,974,090,173,128.78
  5. Step 5: Solve for x
    x = 194,974,090,173,128.78/15,870,232.51
  6. Step 6: Final answer
    x = 12,285,521.97

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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.