Home / 15,724,997.20-21,701,389.35-9,447,444.55

Finding the Fourth Proportional to 15,724,997.20, 21,701,389.35 and 9,447,444.55

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Solution

The fourth proportional to 15,724,997.20, 21,701,389.35 and 9,447,444.55 is: 13,038,010.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,724,997.20 : 21,701,389.35 = 9,447,444.55 : x
  2. Step 2: Convert to fraction form
    15,724,997.20/21,701,389.35 = 9,447,444.55/x
  3. Step 3: Cross multiply
    15,724,997.20x = 21,701,389.35 × 9,447,444.55
  4. Step 4: Simplify right side
    15,724,997.20x = 205,022,672,542,085.56
  5. Step 5: Solve for x
    x = 205,022,672,542,085.56/15,724,997.20
  6. Step 6: Final answer
    x = 13,038,010.11

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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.