Home / 78,515,402.51-117,718,564.93-34,772,324.30

Finding the Fourth Proportional to 78,515,402.51, 117,718,564.93 and 34,772,324.30

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Solution

The fourth proportional to 78,515,402.51, 117,718,564.93 and 34,772,324.30 is: 52,134,332.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,515,402.51 : 117,718,564.93 = 34,772,324.30 : x
  2. Step 2: Convert to fraction form
    78,515,402.51/117,718,564.93 = 34,772,324.30/x
  3. Step 3: Cross multiply
    78,515,402.51x = 117,718,564.93 × 34,772,324.30
  4. Step 4: Simplify right side
    78,515,402.51x = 4,093,348,116,170,863.50
  5. Step 5: Solve for x
    x = 4,093,348,116,170,863.50/78,515,402.51
  6. Step 6: Final answer
    x = 52,134,332.70

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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.