Home / 442,354,712.80-663,507,268-135,645,983.68

Finding the Fourth Proportional to 442,354,712.80, 663,507,268 and 135,645,983.68

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Solution

The fourth proportional to 442,354,712.80, 663,507,268 and 135,645,983.68 is: 203,461,370.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    442,354,712.80 : 663,507,268 = 135,645,983.68 : x
  2. Step 2: Convert to fraction form
    442,354,712.80/663,507,268 = 135,645,983.68/x
  3. Step 3: Cross multiply
    442,354,712.80x = 663,507,268 × 135,645,983.68
  4. Step 4: Simplify right side
    442,354,712.80x = 90,002,096,046,689,392
  5. Step 5: Solve for x
    x = 90,002,096,046,689,392/442,354,712.80
  6. Step 6: Final answer
    x = 203,461,370.35

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.