Home / 216,438,611.32-298,677,281.55-117,317,230.48

Finding the Fourth Proportional to 216,438,611.32, 298,677,281.55 and 117,317,230.48

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Solution

The fourth proportional to 216,438,611.32, 298,677,281.55 and 117,317,230.48 is: 161,893,440.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    216,438,611.32 : 298,677,281.55 = 117,317,230.48 : x
  2. Step 2: Convert to fraction form
    216,438,611.32/298,677,281.55 = 117,317,230.48/x
  3. Step 3: Cross multiply
    216,438,611.32x = 298,677,281.55 × 117,317,230.48
  4. Step 4: Simplify right side
    216,438,611.32x = 35,039,991,478,741,204
  5. Step 5: Solve for x
    x = 35,039,991,478,741,204/216,438,611.32
  6. Step 6: Final answer
    x = 161,893,440.66

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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.