Home / 28,244,831.80-42,367,247.70-21,859,666.60

Finding the Fourth Proportional to 28,244,831.80, 42,367,247.70 and 21,859,666.60

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Solution

The fourth proportional to 28,244,831.80, 42,367,247.70 and 21,859,666.60 is: 32,789,499.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,244,831.80 : 42,367,247.70 = 21,859,666.60 : x
  2. Step 2: Convert to fraction form
    28,244,831.80/42,367,247.70 = 21,859,666.60/x
  3. Step 3: Cross multiply
    28,244,831.80x = 42,367,247.70 × 21,859,666.60
  4. Step 4: Simplify right side
    28,244,831.80x = 926,133,909,481,617
  5. Step 5: Solve for x
    x = 926,133,909,481,617/28,244,831.80
  6. Step 6: Final answer
    x = 32,789,499.90

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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.