Home / 120,220,944.24-165,905,222.73-65,216,800.74

Finding the Fourth Proportional to 120,220,944.24, 165,905,222.73 and 65,216,800.74

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Solution

The fourth proportional to 120,220,944.24, 165,905,222.73 and 65,216,800.74 is: 89,999,358.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,220,944.24 : 165,905,222.73 = 65,216,800.74 : x
  2. Step 2: Convert to fraction form
    120,220,944.24/165,905,222.73 = 65,216,800.74/x
  3. Step 3: Cross multiply
    120,220,944.24x = 165,905,222.73 × 65,216,800.74
  4. Step 4: Simplify right side
    120,220,944.24x = 10,819,807,852,507,728
  5. Step 5: Solve for x
    x = 10,819,807,852,507,728/120,220,944.24
  6. Step 6: Final answer
    x = 89,999,358.44

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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.