Home / 143,722,690.89-215,585,763.99-40,085,588.02

Finding the Fourth Proportional to 143,722,690.89, 215,585,763.99 and 40,085,588.02

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Solution

The fourth proportional to 143,722,690.89, 215,585,763.99 and 40,085,588.02 is: 60,128,863.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,722,690.89 : 215,585,763.99 = 40,085,588.02 : x
  2. Step 2: Convert to fraction form
    143,722,690.89/215,585,763.99 = 40,085,588.02/x
  3. Step 3: Cross multiply
    143,722,690.89x = 215,585,763.99 × 40,085,588.02
  4. Step 4: Simplify right side
    143,722,690.89x = 8,641,882,118,220,927
  5. Step 5: Solve for x
    x = 8,641,882,118,220,927/143,722,690.89
  6. Step 6: Final answer
    x = 60,128,863.89

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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.