Home / 138,307,352.60-190,867,996.60-76,431,676.97

Finding the Fourth Proportional to 138,307,352.60, 190,867,996.60 and 76,431,676.97

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Solution

The fourth proportional to 138,307,352.60, 190,867,996.60 and 76,431,676.97 is: 105,477,841.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,307,352.60 : 190,867,996.60 = 76,431,676.97 : x
  2. Step 2: Convert to fraction form
    138,307,352.60/190,867,996.60 = 76,431,676.97/x
  3. Step 3: Cross multiply
    138,307,352.60x = 190,867,996.60 × 76,431,676.97
  4. Step 4: Simplify right side
    138,307,352.60x = 14,588,361,060,328,348
  5. Step 5: Solve for x
    x = 14,588,361,060,328,348/138,307,352.60
  6. Step 6: Final answer
    x = 105,477,841.82

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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.