Home / 21,576,182.80-29,776,035.24-12,408,831.76

Finding the Fourth Proportional to 21,576,182.80, 29,776,035.24 and 12,408,831.76

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Solution

The fourth proportional to 21,576,182.80, 29,776,035.24 and 12,408,831.76 is: 17,124,707.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,576,182.80 : 29,776,035.24 = 12,408,831.76 : x
  2. Step 2: Convert to fraction form
    21,576,182.80/29,776,035.24 = 12,408,831.76/x
  3. Step 3: Cross multiply
    21,576,182.80x = 29,776,035.24 × 12,408,831.76
  4. Step 4: Simplify right side
    21,576,182.80x = 369,485,811,772,991.19
  5. Step 5: Solve for x
    x = 369,485,811,772,991.19/21,576,182.80
  6. Step 6: Final answer
    x = 17,124,707.15

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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.