Home / 136,503,121.80-204,754,682.70-90,586,619.40

Finding the Fourth Proportional to 136,503,121.80, 204,754,682.70 and 90,586,619.40

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Solution

The fourth proportional to 136,503,121.80, 204,754,682.70 and 90,586,619.40 is: 135,879,929.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,503,121.80 : 204,754,682.70 = 90,586,619.40 : x
  2. Step 2: Convert to fraction form
    136,503,121.80/204,754,682.70 = 90,586,619.40/x
  3. Step 3: Cross multiply
    136,503,121.80x = 204,754,682.70 × 90,586,619.40
  4. Step 4: Simplify right side
    136,503,121.80x = 18,548,034,512,112,664
  5. Step 5: Solve for x
    x = 18,548,034,512,112,664/136,503,121.80
  6. Step 6: Final answer
    x = 135,879,929.10

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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.