Home / 15,870,231.07-21,901,158.84-8,902,453.17

Finding the Fourth Proportional to 15,870,231.07, 21,901,158.84 and 8,902,453.17

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Solution

The fourth proportional to 15,870,231.07, 21,901,158.84 and 8,902,453.17 is: 12,285,519.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,870,231.07 : 21,901,158.84 = 8,902,453.17 : x
  2. Step 2: Convert to fraction form
    15,870,231.07/21,901,158.84 = 8,902,453.17/x
  3. Step 3: Cross multiply
    15,870,231.07x = 21,901,158.84 × 8,902,453.17
  4. Step 4: Simplify right side
    15,870,231.07x = 194,974,040,941,831.53
  5. Step 5: Solve for x
    x = 194,974,040,941,831.53/15,870,231.07
  6. Step 6: Final answer
    x = 12,285,519.98

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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.