Home / 117,922,245.12-162,733,346.28-68,391,989.46

Finding the Fourth Proportional to 117,922,245.12, 162,733,346.28 and 68,391,989.46

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Solution

The fourth proportional to 117,922,245.12, 162,733,346.28 and 68,391,989.46 is: 94,381,321.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,922,245.12 : 162,733,346.28 = 68,391,989.46 : x
  2. Step 2: Convert to fraction form
    117,922,245.12/162,733,346.28 = 68,391,989.46/x
  3. Step 3: Cross multiply
    117,922,245.12x = 162,733,346.28 × 68,391,989.46
  4. Step 4: Simplify right side
    117,922,245.12x = 11,129,657,303,572,290
  5. Step 5: Solve for x
    x = 11,129,657,303,572,290/117,922,245.12
  6. Step 6: Final answer
    x = 94,381,321.29

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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.