Home / 505,247,812.32-757,090,539.04-394,320,465.28

Finding the Fourth Proportional to 505,247,812.32, 757,090,539.04 and 394,320,465.28

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Solution

The fourth proportional to 505,247,812.32, 757,090,539.04 and 394,320,465.28 is: 590,871,026.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    505,247,812.32 : 757,090,539.04 = 394,320,465.28 : x
  2. Step 2: Convert to fraction form
    505,247,812.32/757,090,539.04 = 394,320,465.28/x
  3. Step 3: Cross multiply
    505,247,812.32x = 757,090,539.04 × 394,320,465.28
  4. Step 4: Simplify right side
    505,247,812.32x = 298,536,293,613,338,752
  5. Step 5: Solve for x
    x = 298,536,293,613,338,752/505,247,812.32
  6. Step 6: Final answer
    x = 590,871,026.72

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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.