Home / 12,347,831.70-18,521,747.55-12,111,635.70

Finding the Fourth Proportional to 12,347,831.70, 18,521,747.55 and 12,111,635.70

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Solution

The fourth proportional to 12,347,831.70, 18,521,747.55 and 12,111,635.70 is: 18,167,453.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,347,831.70 : 18,521,747.55 = 12,111,635.70 : x
  2. Step 2: Convert to fraction form
    12,347,831.70/18,521,747.55 = 12,111,635.70/x
  3. Step 3: Cross multiply
    12,347,831.70x = 18,521,747.55 × 12,111,635.70
  4. Step 4: Simplify right side
    12,347,831.70x = 224,328,658,852,967.53
  5. Step 5: Solve for x
    x = 224,328,658,852,967.53/12,347,831.70
  6. Step 6: Final answer
    x = 18,167,453.55

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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.