Home / 78,515,316.84-117,718,436.70-34,772,238.63

Finding the Fourth Proportional to 78,515,316.84, 117,718,436.70 and 34,772,238.63

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Solution

The fourth proportional to 78,515,316.84, 117,718,436.70 and 34,772,238.63 is: 52,134,204.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,515,316.84 : 117,718,436.70 = 34,772,238.63 : x
  2. Step 2: Convert to fraction form
    78,515,316.84/117,718,436.70 = 34,772,238.63/x
  3. Step 3: Cross multiply
    78,515,316.84x = 117,718,436.70 × 34,772,238.63
  4. Step 4: Simplify right side
    78,515,316.84x = 4,093,333,572,654,789.50
  5. Step 5: Solve for x
    x = 4,093,333,572,654,789.50/78,515,316.84
  6. Step 6: Final answer
    x = 52,134,204.35

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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.