Home / 21,103,491.20-29,122,820.16-11,935,939.20

Finding the Fourth Proportional to 21,103,491.20, 29,122,820.16 and 11,935,939.20

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Solution

The fourth proportional to 21,103,491.20, 29,122,820.16 and 11,935,939.20 is: 16,471,597.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,103,491.20 : 29,122,820.16 = 11,935,939.20 : x
  2. Step 2: Convert to fraction form
    21,103,491.20/29,122,820.16 = 11,935,939.20/x
  3. Step 3: Cross multiply
    21,103,491.20x = 29,122,820.16 × 11,935,939.20
  4. Step 4: Simplify right side
    21,103,491.20x = 347,608,210,762,294.25
  5. Step 5: Solve for x
    x = 347,608,210,762,294.25/21,103,491.20
  6. Step 6: Final answer
    x = 16,471,597.40

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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.