Home / 19,320,013.90-28,980,020.85-10,362,061.90

Finding the Fourth Proportional to 19,320,013.90, 28,980,020.85 and 10,362,061.90

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Solution

The fourth proportional to 19,320,013.90, 28,980,020.85 and 10,362,061.90 is: 15,543,092.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,320,013.90 : 28,980,020.85 = 10,362,061.90 : x
  2. Step 2: Convert to fraction form
    19,320,013.90/28,980,020.85 = 10,362,061.90/x
  3. Step 3: Cross multiply
    19,320,013.90x = 28,980,020.85 × 10,362,061.90
  4. Step 4: Simplify right side
    19,320,013.90x = 300,292,769,910,990.62
  5. Step 5: Solve for x
    x = 300,292,769,910,990.62/19,320,013.90
  6. Step 6: Final answer
    x = 15,543,092.85

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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.