Home / 21,207,078.83-29,266,155.78-11,788,754.24

Finding the Fourth Proportional to 21,207,078.83, 29,266,155.78 and 11,788,754.24

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Solution

The fourth proportional to 21,207,078.83, 29,266,155.78 and 11,788,754.24 is: 16,268,695.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,207,078.83 : 29,266,155.78 = 11,788,754.24 : x
  2. Step 2: Convert to fraction form
    21,207,078.83/29,266,155.78 = 11,788,754.24/x
  3. Step 3: Cross multiply
    21,207,078.83x = 29,266,155.78 × 11,788,754.24
  4. Step 4: Simplify right side
    21,207,078.83x = 345,011,518,039,975.50
  5. Step 5: Solve for x
    x = 345,011,518,039,975.50/21,207,078.83
  6. Step 6: Final answer
    x = 16,268,695.98

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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.