Home / 21,549,646.98-29,739,139.59-11,760,720.78

Finding the Fourth Proportional to 21,549,646.98, 29,739,139.59 and 11,760,720.78

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Solution

The fourth proportional to 21,549,646.98, 29,739,139.59 and 11,760,720.78 is: 16,230,136.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,549,646.98 : 29,739,139.59 = 11,760,720.78 : x
  2. Step 2: Convert to fraction form
    21,549,646.98/29,739,139.59 = 11,760,720.78/x
  3. Step 3: Cross multiply
    21,549,646.98x = 29,739,139.59 × 11,760,720.78
  4. Step 4: Simplify right side
    21,549,646.98x = 349,753,716,955,433.69
  5. Step 5: Solve for x
    x = 349,753,716,955,433.69/21,549,646.98
  6. Step 6: Final answer
    x = 16,230,136.73

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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.