Home / 28,731,224.96-39,649,927.77-15,679,324.57

Finding the Fourth Proportional to 28,731,224.96, 39,649,927.77 and 15,679,324.57

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Solution

The fourth proportional to 28,731,224.96, 39,649,927.77 and 15,679,324.57 is: 21,637,924.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,731,224.96 : 39,649,927.77 = 15,679,324.57 : x
  2. Step 2: Convert to fraction form
    28,731,224.96/39,649,927.77 = 15,679,324.57/x
  3. Step 3: Cross multiply
    28,731,224.96x = 39,649,927.77 × 15,679,324.57
  4. Step 4: Simplify right side
    28,731,224.96x = 621,684,086,702,211.12
  5. Step 5: Solve for x
    x = 621,684,086,702,211.12/28,731,224.96
  6. Step 6: Final answer
    x = 21,637,924.86

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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.