Home / 78,536,536.94-117,812,850.39-30,055,166.30

Finding the Fourth Proportional to 78,536,536.94, 117,812,850.39 and 30,055,166.30

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Solution

The fourth proportional to 78,536,536.94, 117,812,850.39 and 30,055,166.30 is: 45,085,828.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,536,536.94 : 117,812,850.39 = 30,055,166.30 : x
  2. Step 2: Convert to fraction form
    78,536,536.94/117,812,850.39 = 30,055,166.30/x
  3. Step 3: Cross multiply
    78,536,536.94x = 117,812,850.39 × 30,055,166.30
  4. Step 4: Simplify right side
    78,536,536.94x = 3,540,884,810,748,470
  5. Step 5: Solve for x
    x = 3,540,884,810,748,470/78,536,536.94
  6. Step 6: Final answer
    x = 45,085,828.19

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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.