Home / 397,486,569.38-548,535,525.03-218,887,066.04

Finding the Fourth Proportional to 397,486,569.38, 548,535,525.03 and 218,887,066.04

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Solution

The fourth proportional to 397,486,569.38, 548,535,525.03 and 218,887,066.04 is: 302,066,386.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    397,486,569.38 : 548,535,525.03 = 218,887,066.04 : x
  2. Step 2: Convert to fraction form
    397,486,569.38/548,535,525.03 = 218,887,066.04/x
  3. Step 3: Cross multiply
    397,486,569.38x = 548,535,525.03 × 218,887,066.04
  4. Step 4: Simplify right side
    397,486,569.38x = 120,067,331,689,784,992
  5. Step 5: Solve for x
    x = 120,067,331,689,784,992/397,486,569.38
  6. Step 6: Final answer
    x = 302,066,386.49

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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.