Home / 21,315,064.89-29,414,768.80-11,525,485.65

Finding the Fourth Proportional to 21,315,064.89, 29,414,768.80 and 11,525,485.65

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Solution

The fourth proportional to 21,315,064.89, 29,414,768.80 and 11,525,485.65 is: 15,905,158.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,315,064.89 : 29,414,768.80 = 11,525,485.65 : x
  2. Step 2: Convert to fraction form
    21,315,064.89/29,414,768.80 = 11,525,485.65/x
  3. Step 3: Cross multiply
    21,315,064.89x = 29,414,768.80 × 11,525,485.65
  4. Step 4: Simplify right side
    21,315,064.89x = 339,019,495,702,467.75
  5. Step 5: Solve for x
    x = 339,019,495,702,467.75/21,315,064.89
  6. Step 6: Final answer
    x = 15,905,158.98

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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.