Home / 208,722,220.00-313,071,815.44-85,869,446.90

Finding the Fourth Proportional to 208,722,220.00, 313,071,815.44 and 85,869,446.90

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Solution

The fourth proportional to 208,722,220.00, 313,071,815.44 and 85,869,446.90 is: 128,799,433.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,722,220.00 : 313,071,815.44 = 85,869,446.90 : x
  2. Step 2: Convert to fraction form
    208,722,220.00/313,071,815.44 = 85,869,446.90/x
  3. Step 3: Cross multiply
    208,722,220.00x = 313,071,815.44 × 85,869,446.90
  4. Step 4: Simplify right side
    208,722,220.00x = 26,883,303,630,352,800
  5. Step 5: Solve for x
    x = 26,883,303,630,352,800/208,722,220.00
  6. Step 6: Final answer
    x = 128,799,433.19

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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.