Home / 21,096,607.32-31,646,136.06-8,142,831.36

Finding the Fourth Proportional to 21,096,607.32, 31,646,136.06 and 8,142,831.36

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Solution

The fourth proportional to 21,096,607.32, 31,646,136.06 and 8,142,831.36 is: 12,214,719.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,096,607.32 : 31,646,136.06 = 8,142,831.36 : x
  2. Step 2: Convert to fraction form
    21,096,607.32/31,646,136.06 = 8,142,831.36/x
  3. Step 3: Cross multiply
    21,096,607.32x = 31,646,136.06 × 8,142,831.36
  4. Step 4: Simplify right side
    21,096,607.32x = 257,689,149,132,194.84
  5. Step 5: Solve for x
    x = 257,689,149,132,194.84/21,096,607.32
  6. Step 6: Final answer
    x = 12,214,719.89

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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.