Home / 81,777,881.10-122,666,821.65-47,340,504.30

Finding the Fourth Proportional to 81,777,881.10, 122,666,821.65 and 47,340,504.30

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Solution

The fourth proportional to 81,777,881.10, 122,666,821.65 and 47,340,504.30 is: 71,010,756.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,777,881.10 : 122,666,821.65 = 47,340,504.30 : x
  2. Step 2: Convert to fraction form
    81,777,881.10/122,666,821.65 = 47,340,504.30/x
  3. Step 3: Cross multiply
    81,777,881.10x = 122,666,821.65 × 47,340,504.30
  4. Step 4: Simplify right side
    81,777,881.10x = 5,807,109,197,789,158
  5. Step 5: Solve for x
    x = 5,807,109,197,789,158/81,777,881.10
  6. Step 6: Final answer
    x = 71,010,756.45

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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.