Home / 258,609,105.80-387,913,658.70-161,674,267.40

Finding the Fourth Proportional to 258,609,105.80, 387,913,658.70 and 161,674,267.40

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Solution

The fourth proportional to 258,609,105.80, 387,913,658.70 and 161,674,267.40 is: 242,511,401.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    258,609,105.80 : 387,913,658.70 = 161,674,267.40 : x
  2. Step 2: Convert to fraction form
    258,609,105.80/387,913,658.70 = 161,674,267.40/x
  3. Step 3: Cross multiply
    258,609,105.80x = 387,913,658.70 × 161,674,267.40
  4. Step 4: Simplify right side
    258,609,105.80x = 62,715,656,584,776,136
  5. Step 5: Solve for x
    x = 62,715,656,584,776,136/258,609,105.80
  6. Step 6: Final answer
    x = 242,511,401.10

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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.