Home / 629,613,929.68-868,868,382.40-351,173,400.32

Finding the Fourth Proportional to 629,613,929.68, 868,868,382.40 and 351,173,400.32

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Solution

The fourth proportional to 629,613,929.68, 868,868,382.40 and 351,173,400.32 is: 484,619,939.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    629,613,929.68 : 868,868,382.40 = 351,173,400.32 : x
  2. Step 2: Convert to fraction form
    629,613,929.68/868,868,382.40 = 351,173,400.32/x
  3. Step 3: Cross multiply
    629,613,929.68x = 868,868,382.40 × 351,173,400.32
  4. Step 4: Simplify right side
    629,613,929.68x = 305,123,464,277,946,048
  5. Step 5: Solve for x
    x = 305,123,464,277,946,048/629,613,929.68
  6. Step 6: Final answer
    x = 484,619,939.13

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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.