Home / 120,818,836.20-181,346,219.10-60,302,893.80

Finding the Fourth Proportional to 120,818,836.20, 181,346,219.10 and 60,302,893.80

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Solution

The fourth proportional to 120,818,836.20, 181,346,219.10 and 60,302,893.80 is: 90,513,219.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,818,836.20 : 181,346,219.10 = 60,302,893.80 : x
  2. Step 2: Convert to fraction form
    120,818,836.20/181,346,219.10 = 60,302,893.80/x
  3. Step 3: Cross multiply
    120,818,836.20x = 181,346,219.10 × 60,302,893.80
  4. Step 4: Simplify right side
    120,818,836.20x = 10,935,701,791,418,830
  5. Step 5: Solve for x
    x = 10,935,701,791,418,830/120,818,836.20
  6. Step 6: Final answer
    x = 90,513,219.09

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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.