Home / 628,665,629.96-867,519,479.37-346,392,274.46

Finding the Fourth Proportional to 628,665,629.96, 867,519,479.37 and 346,392,274.46

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Solution

The fourth proportional to 628,665,629.96, 867,519,479.37 and 346,392,274.46 is: 477,999,800.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    628,665,629.96 : 867,519,479.37 = 346,392,274.46 : x
  2. Step 2: Convert to fraction form
    628,665,629.96/867,519,479.37 = 346,392,274.46/x
  3. Step 3: Cross multiply
    628,665,629.96x = 867,519,479.37 × 346,392,274.46
  4. Step 4: Simplify right side
    628,665,629.96x = 300,502,045,594,189,696
  5. Step 5: Solve for x
    x = 300,502,045,594,189,696/628,665,629.96
  6. Step 6: Final answer
    x = 477,999,800.33

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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.