Home / 137,905,203.78-190,310,647.77-76,027,756.68

Finding the Fourth Proportional to 137,905,203.78, 190,310,647.77 and 76,027,756.68

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Solution

The fourth proportional to 137,905,203.78, 190,310,647.77 and 76,027,756.68 is: 104,919,112.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,905,203.78 : 190,310,647.77 = 76,027,756.68 : x
  2. Step 2: Convert to fraction form
    137,905,203.78/190,310,647.77 = 76,027,756.68/x
  3. Step 3: Cross multiply
    137,905,203.78x = 190,310,647.77 × 76,027,756.68
  4. Step 4: Simplify right side
    137,905,203.78x = 14,468,891,622,270,746
  5. Step 5: Solve for x
    x = 14,468,891,622,270,746/137,905,203.78
  6. Step 6: Final answer
    x = 104,919,112.74

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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.