Home / 522,030,145.42-720,420,542.19-299,054,921.38

Finding the Fourth Proportional to 522,030,145.42, 720,420,542.19 and 299,054,921.38

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Solution

The fourth proportional to 522,030,145.42, 720,420,542.19 and 299,054,921.38 is: 412,706,642.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    522,030,145.42 : 720,420,542.19 = 299,054,921.38 : x
  2. Step 2: Convert to fraction form
    522,030,145.42/720,420,542.19 = 299,054,921.38/x
  3. Step 3: Cross multiply
    522,030,145.42x = 720,420,542.19 × 299,054,921.38
  4. Step 4: Simplify right side
    522,030,145.42x = 215,445,308,605,167,424
  5. Step 5: Solve for x
    x = 215,445,308,605,167,424/522,030,145.42
  6. Step 6: Final answer
    x = 412,706,642.51

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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.