Home / 486,162,916.21-670,904,857.16-266,146,342.21

Finding the Fourth Proportional to 486,162,916.21, 670,904,857.16 and 266,146,342.21

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Solution

The fourth proportional to 486,162,916.21, 670,904,857.16 and 266,146,342.21 is: 367,281,970.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    486,162,916.21 : 670,904,857.16 = 266,146,342.21 : x
  2. Step 2: Convert to fraction form
    486,162,916.21/670,904,857.16 = 266,146,342.21/x
  3. Step 3: Cross multiply
    486,162,916.21x = 670,904,857.16 × 266,146,342.21
  4. Step 4: Simplify right side
    486,162,916.21x = 178,558,873,704,562,496
  5. Step 5: Solve for x
    x = 178,558,873,704,562,496/486,162,916.21
  6. Step 6: Final answer
    x = 367,281,970.20

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.