Home / 136,008,015.10-204,012,022.65-81,588,456.70

Finding the Fourth Proportional to 136,008,015.10, 204,012,022.65 and 81,588,456.70

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Solution

The fourth proportional to 136,008,015.10, 204,012,022.65 and 81,588,456.70 is: 122,382,685.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,008,015.10 : 204,012,022.65 = 81,588,456.70 : x
  2. Step 2: Convert to fraction form
    136,008,015.10/204,012,022.65 = 81,588,456.70/x
  3. Step 3: Cross multiply
    136,008,015.10x = 204,012,022.65 × 81,588,456.70
  4. Step 4: Simplify right side
    136,008,015.10x = 16,645,026,076,258,946
  5. Step 5: Solve for x
    x = 16,645,026,076,258,946/136,008,015.10
  6. Step 6: Final answer
    x = 122,382,685.05

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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.