Home / 122,616,307.70-169,209,269.37-66,861,586.80

Finding the Fourth Proportional to 122,616,307.70, 169,209,269.37 and 66,861,586.80

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Solution

The fourth proportional to 122,616,307.70, 169,209,269.37 and 66,861,586.80 is: 92,268,316.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,616,307.70 : 169,209,269.37 = 66,861,586.80 : x
  2. Step 2: Convert to fraction form
    122,616,307.70/169,209,269.37 = 66,861,586.80/x
  3. Step 3: Cross multiply
    122,616,307.70x = 169,209,269.37 × 66,861,586.80
  4. Step 4: Simplify right side
    122,616,307.70x = 11,313,600,251,346,836
  5. Step 5: Solve for x
    x = 11,313,600,251,346,836/122,616,307.70
  6. Step 6: Final answer
    x = 92,268,316.21

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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.