Home / 198,315,342.80-297,473,014.20-120,717,083.60

Finding the Fourth Proportional to 198,315,342.80, 297,473,014.20 and 120,717,083.60

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Solution

The fourth proportional to 198,315,342.80, 297,473,014.20 and 120,717,083.60 is: 181,075,625.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,315,342.80 : 297,473,014.20 = 120,717,083.60 : x
  2. Step 2: Convert to fraction form
    198,315,342.80/297,473,014.20 = 120,717,083.60/x
  3. Step 3: Cross multiply
    198,315,342.80x = 297,473,014.20 × 120,717,083.60
  4. Step 4: Simplify right side
    198,315,342.80x = 35,910,074,723,925,384
  5. Step 5: Solve for x
    x = 35,910,074,723,925,384/198,315,342.80
  6. Step 6: Final answer
    x = 181,075,625.40

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1.5x scale

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.