Home / 389,619,653.04-537,668,475.56-211,002,090.48

Finding the Fourth Proportional to 389,619,653.04, 537,668,475.56 and 211,002,090.48

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Solution

The fourth proportional to 389,619,653.04, 537,668,475.56 and 211,002,090.48 is: 291,179,285.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    389,619,653.04 : 537,668,475.56 = 211,002,090.48 : x
  2. Step 2: Convert to fraction form
    389,619,653.04/537,668,475.56 = 211,002,090.48/x
  3. Step 3: Cross multiply
    389,619,653.04x = 537,668,475.56 × 211,002,090.48
  4. Step 4: Simplify right side
    389,619,653.04x = 113,449,172,327,299,760
  5. Step 5: Solve for x
    x = 113,449,172,327,299,760/389,619,653.04
  6. Step 6: Final answer
    x = 291,179,285.86

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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.