Home / 31,451,918.40-43,417,038.84-21,144,620.04

Finding the Fourth Proportional to 31,451,918.40, 43,417,038.84 and 21,144,620.04

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Solution

The fourth proportional to 31,451,918.40, 43,417,038.84 and 21,144,620.04 is: 29,188,578.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,451,918.40 : 43,417,038.84 = 21,144,620.04 : x
  2. Step 2: Convert to fraction form
    31,451,918.40/43,417,038.84 = 21,144,620.04/x
  3. Step 3: Cross multiply
    31,451,918.40x = 43,417,038.84 × 21,144,620.04
  4. Step 4: Simplify right side
    31,451,918.40x = 918,036,789,533,722.38
  5. Step 5: Solve for x
    x = 918,036,789,533,722.38/31,451,918.40
  6. Step 6: Final answer
    x = 29,188,578.51

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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.