Home / 78,515,405.23-117,718,569.01-34,772,327.03

Finding the Fourth Proportional to 78,515,405.23, 117,718,569.01 and 34,772,327.03

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Solution

The fourth proportional to 78,515,405.23, 117,718,569.01 and 34,772,327.03 is: 52,134,336.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,515,405.23 : 117,718,569.01 = 34,772,327.03 : x
  2. Step 2: Convert to fraction form
    78,515,405.23/117,718,569.01 = 34,772,327.03/x
  3. Step 3: Cross multiply
    78,515,405.23x = 117,718,569.01 × 34,772,327.03
  4. Step 4: Simplify right side
    78,515,405.23x = 4,093,348,579,119,343.50
  5. Step 5: Solve for x
    x = 4,093,348,579,119,343.50/78,515,405.23
  6. Step 6: Final answer
    x = 52,134,336.79

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.