Home / 57,391,686-79,228,802.43-39,763,955.70

Finding the Fourth Proportional to 57,391,686, 79,228,802.43 and 39,763,955.70

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Solution

The fourth proportional to 57,391,686, 79,228,802.43 and 39,763,955.70 is: 54,893,849.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,391,686 : 79,228,802.43 = 39,763,955.70 : x
  2. Step 2: Convert to fraction form
    57,391,686/79,228,802.43 = 39,763,955.70/x
  3. Step 3: Cross multiply
    57,391,686x = 79,228,802.43 × 39,763,955.70
  4. Step 4: Simplify right side
    57,391,686x = 3,150,450,589,990,573
  5. Step 5: Solve for x
    x = 3,150,450,589,990,573/57,391,686
  6. Step 6: Final answer
    x = 54,893,849.78

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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.