Home / 120,220,955.24-165,905,237.94-65,216,811.76

Finding the Fourth Proportional to 120,220,955.24, 165,905,237.94 and 65,216,811.76

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Solution

The fourth proportional to 120,220,955.24, 165,905,237.94 and 65,216,811.76 is: 89,999,373.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,220,955.24 : 165,905,237.94 = 65,216,811.76 : x
  2. Step 2: Convert to fraction form
    120,220,955.24/165,905,237.94 = 65,216,811.76/x
  3. Step 3: Cross multiply
    120,220,955.24x = 165,905,237.94 × 65,216,811.76
  4. Step 4: Simplify right side
    120,220,955.24x = 10,819,810,672,730,990
  5. Step 5: Solve for x
    x = 10,819,810,672,730,990/120,220,955.24
  6. Step 6: Final answer
    x = 89,999,373.66

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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.