Home / 78,757,056.80-117,923,008.80-61,750,944.80

Finding the Fourth Proportional to 78,757,056.80, 117,923,008.80 and 61,750,944.80

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Solution

The fourth proportional to 78,757,056.80, 117,923,008.80 and 61,750,944.80 is: 92,459,742.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,757,056.80 : 117,923,008.80 = 61,750,944.80 : x
  2. Step 2: Convert to fraction form
    78,757,056.80/117,923,008.80 = 61,750,944.80/x
  3. Step 3: Cross multiply
    78,757,056.80x = 117,923,008.80 × 61,750,944.80
  4. Step 4: Simplify right side
    78,757,056.80x = 7,281,857,207,058,714
  5. Step 5: Solve for x
    x = 7,281,857,207,058,714/78,757,056.80
  6. Step 6: Final answer
    x = 92,459,742.69

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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.