Home / 462,981,706.18-638,915,454.47-251,288,612.80

Finding the Fourth Proportional to 462,981,706.18, 638,915,454.47 and 251,288,612.80

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Solution

The fourth proportional to 462,981,706.18, 638,915,454.47 and 251,288,612.80 is: 346,778,665.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    462,981,706.18 : 638,915,454.47 = 251,288,612.80 : x
  2. Step 2: Convert to fraction form
    462,981,706.18/638,915,454.47 = 251,288,612.80/x
  3. Step 3: Cross multiply
    462,981,706.18x = 638,915,454.47 × 251,288,612.80
  4. Step 4: Simplify right side
    462,981,706.18x = 160,552,178,250,247,872
  5. Step 5: Solve for x
    x = 160,552,178,250,247,872/462,981,706.18
  6. Step 6: Final answer
    x = 346,778,665.57

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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.