Home / 288,147,493.45-397,643,454.21-155,988,393.22

Finding the Fourth Proportional to 288,147,493.45, 397,643,454.21 and 155,988,393.22

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Solution

The fourth proportional to 288,147,493.45, 397,643,454.21 and 155,988,393.22 is: 215,263,935.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    288,147,493.45 : 397,643,454.21 = 155,988,393.22 : x
  2. Step 2: Convert to fraction form
    288,147,493.45/397,643,454.21 = 155,988,393.22/x
  3. Step 3: Cross multiply
    288,147,493.45x = 397,643,454.21 × 155,988,393.22
  4. Step 4: Simplify right side
    288,147,493.45x = 62,027,763,496,668,544
  5. Step 5: Solve for x
    x = 62,027,763,496,668,544/288,147,493.45
  6. Step 6: Final answer
    x = 215,263,935.68

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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.