Home / 511,379,791.29-766,985,706.13-220,168,513.53

Finding the Fourth Proportional to 511,379,791.29, 766,985,706.13 and 220,168,513.53

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Solution

The fourth proportional to 511,379,791.29, 766,985,706.13 and 220,168,513.53 is: 330,216,613.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    511,379,791.29 : 766,985,706.13 = 220,168,513.53 : x
  2. Step 2: Convert to fraction form
    511,379,791.29/766,985,706.13 = 220,168,513.53/x
  3. Step 3: Cross multiply
    511,379,791.29x = 766,985,706.13 × 220,168,513.53
  4. Step 4: Simplify right side
    511,379,791.29x = 168,866,102,812,463,744
  5. Step 5: Solve for x
    x = 168,866,102,812,463,744/511,379,791.29
  6. Step 6: Final answer
    x = 330,216,613.35

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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.