Home / 522,051,435.91-720,414,489.16-287,101,369.81

Finding the Fourth Proportional to 522,051,435.91, 720,414,489.16 and 287,101,369.81

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Solution

The fourth proportional to 522,051,435.91, 720,414,489.16 and 287,101,369.81 is: 396,190,820.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    522,051,435.91 : 720,414,489.16 = 287,101,369.81 : x
  2. Step 2: Convert to fraction form
    522,051,435.91/720,414,489.16 = 287,101,369.81/x
  3. Step 3: Cross multiply
    522,051,435.91x = 720,414,489.16 × 287,101,369.81
  4. Step 4: Simplify right side
    522,051,435.91x = 206,831,986,666,827,712
  5. Step 5: Solve for x
    x = 206,831,986,666,827,712/522,051,435.91
  6. Step 6: Final answer
    x = 396,190,820.37

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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.