Home / 21,291,299.06-29,381,963.83-12,123,941.81

Finding the Fourth Proportional to 21,291,299.06, 29,381,963.83 and 12,123,941.81

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Solution

The fourth proportional to 21,291,299.06, 29,381,963.83 and 12,123,941.81 is: 16,731,023.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,291,299.06 : 29,381,963.83 = 12,123,941.81 : x
  2. Step 2: Convert to fraction form
    21,291,299.06/29,381,963.83 = 12,123,941.81/x
  3. Step 3: Cross multiply
    21,291,299.06x = 29,381,963.83 × 12,123,941.81
  4. Step 4: Simplify right side
    21,291,299.06x = 356,225,219,561,225.06
  5. Step 5: Solve for x
    x = 356,225,219,561,225.06/21,291,299.06
  6. Step 6: Final answer
    x = 16,731,023.25

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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.