Home / 813,367,392.48-1,122,987,540.78-624,859,955.64

Finding the Fourth Proportional to 813,367,392.48, 1,122,987,540.78 and 624,859,955.64

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Solution

The fourth proportional to 813,367,392.48, 1,122,987,540.78 and 624,859,955.64 is: 862,722,001.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    813,367,392.48 : 1,122,987,540.78 = 624,859,955.64 : x
  2. Step 2: Convert to fraction form
    813,367,392.48/1,122,987,540.78 = 624,859,955.64/x
  3. Step 3: Cross multiply
    813,367,392.48x = 1,122,987,540.78 × 624,859,955.64
  4. Step 4: Simplify right side
    813,367,392.48x = 701,709,944,916,063,488
  5. Step 5: Solve for x
    x = 701,709,944,916,063,488/813,367,392.48
  6. Step 6: Final answer
    x = 862,722,001.65

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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.