Home / 198,443,071.74-297,704,341.14-111,128,758.20

Finding the Fourth Proportional to 198,443,071.74, 297,704,341.14 and 111,128,758.20

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Solution

The fourth proportional to 198,443,071.74, 297,704,341.14 and 111,128,758.20 is: 166,715,388.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,443,071.74 : 297,704,341.14 = 111,128,758.20 : x
  2. Step 2: Convert to fraction form
    198,443,071.74/297,704,341.14 = 111,128,758.20/x
  3. Step 3: Cross multiply
    198,443,071.74x = 297,704,341.14 × 111,128,758.20
  4. Step 4: Simplify right side
    198,443,071.74x = 33,083,513,741,637,372
  5. Step 5: Solve for x
    x = 33,083,513,741,637,372/198,443,071.74
  6. Step 6: Final answer
    x = 166,715,388.20

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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.