Home / 22,580,831.21-31,159,298.63-12,789,321.17

Finding the Fourth Proportional to 22,580,831.21, 31,159,298.63 and 12,789,321.17

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Solution

The fourth proportional to 22,580,831.21, 31,159,298.63 and 12,789,321.17 is: 17,647,989.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,580,831.21 : 31,159,298.63 = 12,789,321.17 : x
  2. Step 2: Convert to fraction form
    22,580,831.21/31,159,298.63 = 12,789,321.17/x
  3. Step 3: Cross multiply
    22,580,831.21x = 31,159,298.63 × 12,789,321.17
  4. Step 4: Simplify right side
    22,580,831.21x = 398,506,277,487,187.81
  5. Step 5: Solve for x
    x = 398,506,277,487,187.81/22,580,831.21
  6. Step 6: Final answer
    x = 17,647,989.74

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.