Home / 122,299,170.80-168,767,795.40-66,544,820.72

Finding the Fourth Proportional to 122,299,170.80, 168,767,795.40 and 66,544,820.72

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Solution

The fourth proportional to 122,299,170.80, 168,767,795.40 and 66,544,820.72 is: 91,829,099.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,299,170.80 : 168,767,795.40 = 66,544,820.72 : x
  2. Step 2: Convert to fraction form
    122,299,170.80/168,767,795.40 = 66,544,820.72/x
  3. Step 3: Cross multiply
    122,299,170.80x = 168,767,795.40 × 66,544,820.72
  4. Step 4: Simplify right side
    122,299,170.80x = 11,230,622,688,202,640
  5. Step 5: Solve for x
    x = 11,230,622,688,202,640/122,299,170.80
  6. Step 6: Final answer
    x = 91,829,099.21

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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.