Home / 216,393,165.09-298,769,157.30-137,078,611.16

Finding the Fourth Proportional to 216,393,165.09, 298,769,157.30 and 137,078,611.16

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Solution

The fourth proportional to 216,393,165.09, 298,769,157.30 and 137,078,611.16 is: 189,261,343.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    216,393,165.09 : 298,769,157.30 = 137,078,611.16 : x
  2. Step 2: Convert to fraction form
    216,393,165.09/298,769,157.30 = 137,078,611.16/x
  3. Step 3: Cross multiply
    216,393,165.09x = 298,769,157.30 × 137,078,611.16
  4. Step 4: Simplify right side
    216,393,165.09x = 40,954,861,140,996,600
  5. Step 5: Solve for x
    x = 40,954,861,140,996,600/216,393,165.09
  6. Step 6: Final answer
    x = 189,261,343.47

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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.