Home / 120,220,956.24-165,905,239.32-65,216,812.74

Finding the Fourth Proportional to 120,220,956.24, 165,905,239.32 and 65,216,812.74

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Solution

The fourth proportional to 120,220,956.24, 165,905,239.32 and 65,216,812.74 is: 89,999,375.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,220,956.24 : 165,905,239.32 = 65,216,812.74 : x
  2. Step 2: Convert to fraction form
    120,220,956.24/165,905,239.32 = 65,216,812.74/x
  3. Step 3: Cross multiply
    120,220,956.24x = 165,905,239.32 × 65,216,812.74
  4. Step 4: Simplify right side
    120,220,956.24x = 10,819,810,925,317,324
  5. Step 5: Solve for x
    x = 10,819,810,925,317,324/120,220,956.24
  6. Step 6: Final answer
    x = 89,999,375.02

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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.