Home / 212,493,135.18-318,512,643.57-151,724,628.30

Finding the Fourth Proportional to 212,493,135.18, 318,512,643.57 and 151,724,628.30

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Solution

The fourth proportional to 212,493,135.18, 318,512,643.57 and 151,724,628.30 is: 227,424,817.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,493,135.18 : 318,512,643.57 = 151,724,628.30 : x
  2. Step 2: Convert to fraction form
    212,493,135.18/318,512,643.57 = 151,724,628.30/x
  3. Step 3: Cross multiply
    212,493,135.18x = 318,512,643.57 × 151,724,628.30
  4. Step 4: Simplify right side
    212,493,135.18x = 48,326,212,454,508,640
  5. Step 5: Solve for x
    x = 48,326,212,454,508,640/212,493,135.18
  6. Step 6: Final answer
    x = 227,424,817.34

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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.