Home / 13,203,999.70-19,805,999.55-9,172,921.30

Finding the Fourth Proportional to 13,203,999.70, 19,805,999.55 and 9,172,921.30

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Solution

The fourth proportional to 13,203,999.70, 19,805,999.55 and 9,172,921.30 is: 13,759,381.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,203,999.70 : 19,805,999.55 = 9,172,921.30 : x
  2. Step 2: Convert to fraction form
    13,203,999.70/19,805,999.55 = 9,172,921.30/x
  3. Step 3: Cross multiply
    13,203,999.70x = 19,805,999.55 × 9,172,921.30
  4. Step 4: Simplify right side
    13,203,999.70x = 181,678,875,139,985.44
  5. Step 5: Solve for x
    x = 181,678,875,139,985.44/13,203,999.70
  6. Step 6: Final answer
    x = 13,759,381.95

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.