Home / 208,970,976.89-312,774,382.25-153,624,160.87

Finding the Fourth Proportional to 208,970,976.89, 312,774,382.25 and 153,624,160.87

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Solution

The fourth proportional to 208,970,976.89, 312,774,382.25 and 153,624,160.87 is: 229,934,810.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,970,976.89 : 312,774,382.25 = 153,624,160.87 : x
  2. Step 2: Convert to fraction form
    208,970,976.89/312,774,382.25 = 153,624,160.87/x
  3. Step 3: Cross multiply
    208,970,976.89x = 312,774,382.25 × 153,624,160.87
  4. Step 4: Simplify right side
    208,970,976.89x = 48,049,702,014,788,872
  5. Step 5: Solve for x
    x = 48,049,702,014,788,872/208,970,976.89
  6. Step 6: Final answer
    x = 229,934,810.71

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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.