Home / 198,162,933,722.79-297,122,752,190.02-77,010,028,359.56

Finding the Fourth Proportional to 198,162,933,722.79, 297,122,752,190.02 and 77,010,028,359.56

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Solution

The fourth proportional to 198,162,933,722.79, 297,122,752,190.02 and 77,010,028,359.56 is: 115,467,767,571.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,162,933,722.79 : 297,122,752,190.02 = 77,010,028,359.56 : x
  2. Step 2: Convert to fraction form
    198,162,933,722.79/297,122,752,190.02 = 77,010,028,359.56/x
  3. Step 3: Cross multiply
    198,162,933,722.79x = 297,122,752,190.02 × 77,010,028,359.56
  4. Step 4: Simplify right side
    198,162,933,722.79x = 22,881,431,572,425,148,989,440
  5. Step 5: Solve for x
    x = 22,881,431,572,425,148,989,440/198,162,933,722.79
  6. Step 6: Final answer
    x = 115,467,767,571.68

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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.