Home / 206,678,756.81-309,910,496.54-97,474,605.12

Finding the Fourth Proportional to 206,678,756.81, 309,910,496.54 and 97,474,605.12

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Solution

The fourth proportional to 206,678,756.81, 309,910,496.54 and 97,474,605.12 is: 146,161,142.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    206,678,756.81 : 309,910,496.54 = 97,474,605.12 : x
  2. Step 2: Convert to fraction form
    206,678,756.81/309,910,496.54 = 97,474,605.12/x
  3. Step 3: Cross multiply
    206,678,756.81x = 309,910,496.54 × 97,474,605.12
  4. Step 4: Simplify right side
    206,678,756.81x = 30,208,403,272,292,256
  5. Step 5: Solve for x
    x = 30,208,403,272,292,256/206,678,756.81
  6. Step 6: Final answer
    x = 146,161,142.72

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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.