Home / 137,905,317.78-190,310,805.36-76,027,870.68

Finding the Fourth Proportional to 137,905,317.78, 190,310,805.36 and 76,027,870.68

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Solution

The fourth proportional to 137,905,317.78, 190,310,805.36 and 76,027,870.68 is: 104,919,270.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,905,317.78 : 190,310,805.36 = 76,027,870.68 : x
  2. Step 2: Convert to fraction form
    137,905,317.78/190,310,805.36 = 76,027,870.68/x
  3. Step 3: Cross multiply
    137,905,317.78x = 190,310,805.36 × 76,027,870.68
  4. Step 4: Simplify right side
    137,905,317.78x = 14,468,925,298,916,734
  5. Step 5: Solve for x
    x = 14,468,925,298,916,734/137,905,317.78
  6. Step 6: Final answer
    x = 104,919,270.21

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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.