Home / 20,684,944.45-28,544,102.67-11,390,697.46

Finding the Fourth Proportional to 20,684,944.45, 28,544,102.67 and 11,390,697.46

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Solution

The fourth proportional to 20,684,944.45, 28,544,102.67 and 11,390,697.46 is: 15,718,545.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,684,944.45 : 28,544,102.67 = 11,390,697.46 : x
  2. Step 2: Convert to fraction form
    20,684,944.45/28,544,102.67 = 11,390,697.46/x
  3. Step 3: Cross multiply
    20,684,944.45x = 28,544,102.67 × 11,390,697.46
  4. Step 4: Simplify right side
    20,684,944.45x = 325,137,237,781,148.25
  5. Step 5: Solve for x
    x = 325,137,237,781,148.25/20,684,944.45
  6. Step 6: Final answer
    x = 15,718,545.37

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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.