Home / 198,154,678.05-297,230,125.73-120,453,039.97

Finding the Fourth Proportional to 198,154,678.05, 297,230,125.73 and 120,453,039.97

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Solution

The fourth proportional to 198,154,678.05, 297,230,125.73 and 120,453,039.97 is: 180,678,410.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,154,678.05 : 297,230,125.73 = 120,453,039.97 : x
  2. Step 2: Convert to fraction form
    198,154,678.05/297,230,125.73 = 120,453,039.97/x
  3. Step 3: Cross multiply
    198,154,678.05x = 297,230,125.73 × 120,453,039.97
  4. Step 4: Simplify right side
    198,154,678.05x = 35,802,272,213,498,480
  5. Step 5: Solve for x
    x = 35,802,272,213,498,480/198,154,678.05
  6. Step 6: Final answer
    x = 180,678,410.25

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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.