Home / 172,046,396.43-258,150,307.14-85,791,529.20

Finding the Fourth Proportional to 172,046,396.43, 258,150,307.14 and 85,791,529.20

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Solution

The fourth proportional to 172,046,396.43, 258,150,307.14 and 85,791,529.20 is: 128,727,541.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,046,396.43 : 258,150,307.14 = 85,791,529.20 : x
  2. Step 2: Convert to fraction form
    172,046,396.43/258,150,307.14 = 85,791,529.20/x
  3. Step 3: Cross multiply
    172,046,396.43x = 258,150,307.14 × 85,791,529.20
  4. Step 4: Simplify right side
    172,046,396.43x = 22,147,109,612,990,280
  5. Step 5: Solve for x
    x = 22,147,109,612,990,280/172,046,396.43
  6. Step 6: Final answer
    x = 128,727,541.36

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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.