Home / 21,103,483.20-29,122,809.12-11,935,931.20

Finding the Fourth Proportional to 21,103,483.20, 29,122,809.12 and 11,935,931.20

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Solution

The fourth proportional to 21,103,483.20, 29,122,809.12 and 11,935,931.20 is: 16,471,586.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,103,483.20 : 29,122,809.12 = 11,935,931.20 : x
  2. Step 2: Convert to fraction form
    21,103,483.20/29,122,809.12 = 11,935,931.20/x
  3. Step 3: Cross multiply
    21,103,483.20x = 29,122,809.12 × 11,935,931.20
  4. Step 4: Simplify right side
    21,103,483.20x = 347,607,846,007,052.56
  5. Step 5: Solve for x
    x = 347,607,846,007,052.56/21,103,483.20
  6. Step 6: Final answer
    x = 16,471,586.36

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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.