Home / 208,591,810.80-312,887,716.20-122,371,522.80

Finding the Fourth Proportional to 208,591,810.80, 312,887,716.20 and 122,371,522.80

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Solution

The fourth proportional to 208,591,810.80, 312,887,716.20 and 122,371,522.80 is: 183,557,284.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,591,810.80 : 312,887,716.20 = 122,371,522.80 : x
  2. Step 2: Convert to fraction form
    208,591,810.80/312,887,716.20 = 122,371,522.80/x
  3. Step 3: Cross multiply
    208,591,810.80x = 312,887,716.20 × 122,371,522.80
  4. Step 4: Simplify right side
    208,591,810.80x = 38,288,546,296,808,224
  5. Step 5: Solve for x
    x = 38,288,546,296,808,224/208,591,810.80
  6. Step 6: Final answer
    x = 183,557,284.20

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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.