Home / 198,315,341.80-297,473,012.70-120,717,082.60

Finding the Fourth Proportional to 198,315,341.80, 297,473,012.70 and 120,717,082.60

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Solution

The fourth proportional to 198,315,341.80, 297,473,012.70 and 120,717,082.60 is: 181,075,623.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,315,341.80 : 297,473,012.70 = 120,717,082.60 : x
  2. Step 2: Convert to fraction form
    198,315,341.80/297,473,012.70 = 120,717,082.60/x
  3. Step 3: Cross multiply
    198,315,341.80x = 297,473,012.70 × 120,717,082.60
  4. Step 4: Simplify right side
    198,315,341.80x = 35,910,074,245,376,744
  5. Step 5: Solve for x
    x = 35,910,074,245,376,744/198,315,341.80
  6. Step 6: Final answer
    x = 181,075,623.90

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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.