Home / 508,153,792.16-762,267,120.42-212,751,648.20

Finding the Fourth Proportional to 508,153,792.16, 762,267,120.42 and 212,751,648.20

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Solution

The fourth proportional to 508,153,792.16, 762,267,120.42 and 212,751,648.20 is: 319,142,725.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    508,153,792.16 : 762,267,120.42 = 212,751,648.20 : x
  2. Step 2: Convert to fraction form
    508,153,792.16/762,267,120.42 = 212,751,648.20/x
  3. Step 3: Cross multiply
    508,153,792.16x = 762,267,120.42 × 212,751,648.20
  4. Step 4: Simplify right side
    508,153,792.16x = 162,173,586,238,022,848
  5. Step 5: Solve for x
    x = 162,173,586,238,022,848/508,153,792.16
  6. Step 6: Final answer
    x = 319,142,725.57

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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.