Home / 122,299,331.28-168,768,016.20-66,544,981.20

Finding the Fourth Proportional to 122,299,331.28, 168,768,016.20 and 66,544,981.20

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Solution

The fourth proportional to 122,299,331.28, 168,768,016.20 and 66,544,981.20 is: 91,829,320.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,299,331.28 : 168,768,016.20 = 66,544,981.20 : x
  2. Step 2: Convert to fraction form
    122,299,331.28/168,768,016.20 = 66,544,981.20/x
  3. Step 3: Cross multiply
    122,299,331.28x = 168,768,016.20 × 66,544,981.20
  4. Step 4: Simplify right side
    122,299,331.28x = 11,230,664,465,190,296
  5. Step 5: Solve for x
    x = 11,230,664,465,190,296/122,299,331.28
  6. Step 6: Final answer
    x = 91,829,320.30

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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.