Home / 21,197,831.80-31,796,747.70-5,241,479.80

Finding the Fourth Proportional to 21,197,831.80, 31,796,747.70 and 5,241,479.80

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Solution

The fourth proportional to 21,197,831.80, 31,796,747.70 and 5,241,479.80 is: 7,862,219.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,197,831.80 : 31,796,747.70 = 5,241,479.80 : x
  2. Step 2: Convert to fraction form
    21,197,831.80/31,796,747.70 = 5,241,479.80/x
  3. Step 3: Cross multiply
    21,197,831.80x = 31,796,747.70 × 5,241,479.80
  4. Step 4: Simplify right side
    21,197,831.80x = 166,662,010,775,246.44
  5. Step 5: Solve for x
    x = 166,662,010,775,246.44/21,197,831.80
  6. Step 6: Final answer
    x = 7,862,219.70

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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.