Home / 31,131,320.20-46,696,980.30-19,821,905.80

Finding the Fourth Proportional to 31,131,320.20, 46,696,980.30 and 19,821,905.80

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Solution

The fourth proportional to 31,131,320.20, 46,696,980.30 and 19,821,905.80 is: 29,732,858.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,131,320.20 : 46,696,980.30 = 19,821,905.80 : x
  2. Step 2: Convert to fraction form
    31,131,320.20/46,696,980.30 = 19,821,905.80/x
  3. Step 3: Cross multiply
    31,131,320.20x = 46,696,980.30 × 19,821,905.80
  4. Step 4: Simplify right side
    31,131,320.20x = 925,623,144,651,055.75
  5. Step 5: Solve for x
    x = 925,623,144,651,055.75/31,131,320.20
  6. Step 6: Final answer
    x = 29,732,858.70

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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.