Home / 170,747,881.53-256,083,489.64-78,543,064.86

Finding the Fourth Proportional to 170,747,881.53, 256,083,489.64 and 78,543,064.86

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Solution

The fourth proportional to 170,747,881.53, 256,083,489.64 and 78,543,064.86 is: 117,796,964.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    170,747,881.53 : 256,083,489.64 = 78,543,064.86 : x
  2. Step 2: Convert to fraction form
    170,747,881.53/256,083,489.64 = 78,543,064.86/x
  3. Step 3: Cross multiply
    170,747,881.53x = 256,083,489.64 × 78,543,064.86
  4. Step 4: Simplify right side
    170,747,881.53x = 20,113,582,136,369,656
  5. Step 5: Solve for x
    x = 20,113,582,136,369,656/170,747,881.53
  6. Step 6: Final answer
    x = 117,796,964.48

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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.