Home / 20,774,779.23-28,669,736.07-11,482,495.98

Finding the Fourth Proportional to 20,774,779.23, 28,669,736.07 and 11,482,495.98

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Solution

The fourth proportional to 20,774,779.23, 28,669,736.07 and 11,482,495.98 is: 15,846,143.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,774,779.23 : 28,669,736.07 = 11,482,495.98 : x
  2. Step 2: Convert to fraction form
    20,774,779.23/28,669,736.07 = 11,482,495.98/x
  3. Step 3: Cross multiply
    20,774,779.23x = 28,669,736.07 × 11,482,495.98
  4. Step 4: Simplify right side
    20,774,779.23x = 329,200,129,171,436
  5. Step 5: Solve for x
    x = 329,200,129,171,436/20,774,779.23
  6. Step 6: Final answer
    x = 15,846,143.32

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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.