Home / 85,467,039.42-117,985,180.70-57,257,985.03

Finding the Fourth Proportional to 85,467,039.42, 117,985,180.70 and 57,257,985.03

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Solution

The fourth proportional to 85,467,039.42, 117,985,180.70 and 57,257,985.03 is: 79,043,263.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,467,039.42 : 117,985,180.70 = 57,257,985.03 : x
  2. Step 2: Convert to fraction form
    85,467,039.42/117,985,180.70 = 57,257,985.03/x
  3. Step 3: Cross multiply
    85,467,039.42x = 117,985,180.70 × 57,257,985.03
  4. Step 4: Simplify right side
    85,467,039.42x = 6,755,593,710,282,445
  5. Step 5: Solve for x
    x = 6,755,593,710,282,445/85,467,039.42
  6. Step 6: Final answer
    x = 79,043,263.42

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.