Home / 127,379,671.43-190,819,802.12-66,009,087.72

Finding the Fourth Proportional to 127,379,671.43, 190,819,802.12 and 66,009,087.72

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Solution

The fourth proportional to 127,379,671.43, 190,819,802.12 and 66,009,087.72 is: 98,884,232.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,379,671.43 : 190,819,802.12 = 66,009,087.72 : x
  2. Step 2: Convert to fraction form
    127,379,671.43/190,819,802.12 = 66,009,087.72/x
  3. Step 3: Cross multiply
    127,379,671.43x = 190,819,802.12 × 66,009,087.72
  4. Step 4: Simplify right side
    127,379,671.43x = 12,595,841,056,852,122
  5. Step 5: Solve for x
    x = 12,595,841,056,852,122/127,379,671.43
  6. Step 6: Final answer
    x = 98,884,232.59

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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.