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Finding the Fourth Proportional to 10,709,973, 14,779,868.94 and 5,815,235.21

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Solution

The fourth proportional to 10,709,973, 14,779,868.94 and 5,815,235.21 is: 8,025,082.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,709,973 : 14,779,868.94 = 5,815,235.21 : x
  2. Step 2: Convert to fraction form
    10,709,973/14,779,868.94 = 5,815,235.21/x
  3. Step 3: Cross multiply
    10,709,973x = 14,779,868.94 × 5,815,235.21
  4. Step 4: Simplify right side
    10,709,973x = 85,948,414,185,174.03
  5. Step 5: Solve for x
    x = 85,948,414,185,174.03/10,709,973
  6. Step 6: Final answer
    x = 8,025,082.25

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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.