Home / 87,004,996.09-120,070,051.41-49,842,458.72

Finding the Fourth Proportional to 87,004,996.09, 120,070,051.41 and 49,842,458.72

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Solution

The fourth proportional to 87,004,996.09, 120,070,051.41 and 49,842,458.72 is: 68,784,401.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,004,996.09 : 120,070,051.41 = 49,842,458.72 : x
  2. Step 2: Convert to fraction form
    87,004,996.09/120,070,051.41 = 49,842,458.72/x
  3. Step 3: Cross multiply
    87,004,996.09x = 120,070,051.41 × 49,842,458.72
  4. Step 4: Simplify right side
    87,004,996.09x = 5,984,586,580,911,202
  5. Step 5: Solve for x
    x = 5,984,586,580,911,202/87,004,996.09
  6. Step 6: Final answer
    x = 68,784,401.47

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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.