Home / 136,269,005.82-188,051,565.51-74,389,386.30

Finding the Fourth Proportional to 136,269,005.82, 188,051,565.51 and 74,389,386.30

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Solution

The fourth proportional to 136,269,005.82, 188,051,565.51 and 74,389,386.30 is: 102,657,537.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,269,005.82 : 188,051,565.51 = 74,389,386.30 : x
  2. Step 2: Convert to fraction form
    136,269,005.82/188,051,565.51 = 74,389,386.30/x
  3. Step 3: Cross multiply
    136,269,005.82x = 188,051,565.51 × 74,389,386.30
  4. Step 4: Simplify right side
    136,269,005.82x = 13,989,040,551,043,146
  5. Step 5: Solve for x
    x = 13,989,040,551,043,146/136,269,005.82
  6. Step 6: Final answer
    x = 102,657,537.32

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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.