Home / 256,746,768.56-385,105,977.04-187,730,297.36

Finding the Fourth Proportional to 256,746,768.56, 385,105,977.04 and 187,730,297.36

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Solution

The fourth proportional to 256,746,768.56, 385,105,977.04 and 187,730,297.36 is: 281,585,080.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    256,746,768.56 : 385,105,977.04 = 187,730,297.36 : x
  2. Step 2: Convert to fraction form
    256,746,768.56/385,105,977.04 = 187,730,297.36/x
  3. Step 3: Cross multiply
    256,746,768.56x = 385,105,977.04 × 187,730,297.36
  4. Step 4: Simplify right side
    256,746,768.56x = 72,296,059,584,832,544
  5. Step 5: Solve for x
    x = 72,296,059,584,832,544/256,746,768.56
  6. Step 6: Final answer
    x = 281,585,080.86

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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.