Home / 487,079,586.72-672,175,097.00-286,144,930.80

Finding the Fourth Proportional to 487,079,586.72, 672,175,097.00 and 286,144,930.80

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Solution

The fourth proportional to 487,079,586.72, 672,175,097.00 and 286,144,930.80 is: 394,883,098.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    487,079,586.72 : 672,175,097.00 = 286,144,930.80 : x
  2. Step 2: Convert to fraction form
    487,079,586.72/672,175,097.00 = 286,144,930.80/x
  3. Step 3: Cross multiply
    487,079,586.72x = 672,175,097.00 × 286,144,930.80
  4. Step 4: Simplify right side
    487,079,586.72x = 192,339,496,618,823,584
  5. Step 5: Solve for x
    x = 192,339,496,618,823,584/487,079,586.72
  6. Step 6: Final answer
    x = 394,883,098.91

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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.