Home / 298,940,846.40-448,482,128.40-153,396,871.20

Finding the Fourth Proportional to 298,940,846.40, 448,482,128.40 and 153,396,871.20

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Solution

The fourth proportional to 298,940,846.40, 448,482,128.40 and 153,396,871.20 is: 230,131,666.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    298,940,846.40 : 448,482,128.40 = 153,396,871.20 : x
  2. Step 2: Convert to fraction form
    298,940,846.40/448,482,128.40 = 153,396,871.20/x
  3. Step 3: Cross multiply
    298,940,846.40x = 448,482,128.40 × 153,396,871.20
  4. Step 4: Simplify right side
    298,940,846.40x = 68,795,755,285,676,656
  5. Step 5: Solve for x
    x = 68,795,755,285,676,656/298,940,846.40
  6. Step 6: Final answer
    x = 230,131,666.90

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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.