Home / 216,102,831.53-324,105,732.34-99,406,110.47

Finding the Fourth Proportional to 216,102,831.53, 324,105,732.34 and 99,406,110.47

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Solution

The fourth proportional to 216,102,831.53, 324,105,732.34 and 99,406,110.47 is: 149,086,849.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    216,102,831.53 : 324,105,732.34 = 99,406,110.47 : x
  2. Step 2: Convert to fraction form
    216,102,831.53/324,105,732.34 = 99,406,110.47/x
  3. Step 3: Cross multiply
    216,102,831.53x = 324,105,732.34 × 99,406,110.47
  4. Step 4: Simplify right side
    216,102,831.53x = 32,218,090,231,081,248
  5. Step 5: Solve for x
    x = 32,218,090,231,081,248/216,102,831.53
  6. Step 6: Final answer
    x = 149,086,849.09

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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.