Home / 2,656,988,782.24-3,985,863,540.72-816,895,979.68

Finding the Fourth Proportional to 2,656,988,782.24, 3,985,863,540.72 and 816,895,979.68

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Solution

The fourth proportional to 2,656,988,782.24, 3,985,863,540.72 and 816,895,979.68 is: 1,225,460,914.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,656,988,782.24 : 3,985,863,540.72 = 816,895,979.68 : x
  2. Step 2: Convert to fraction form
    2,656,988,782.24/3,985,863,540.72 = 816,895,979.68/x
  3. Step 3: Cross multiply
    2,656,988,782.24x = 3,985,863,540.72 × 816,895,979.68
  4. Step 4: Simplify right side
    2,656,988,782.24x = 3,256,035,901,967,257,600
  5. Step 5: Solve for x
    x = 3,256,035,901,967,257,600/2,656,988,782.24
  6. Step 6: Final answer
    x = 1,225,460,914.15

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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.