Home / 481,486,019.40-722,229,029.10-309,299,135.40

Finding the Fourth Proportional to 481,486,019.40, 722,229,029.10 and 309,299,135.40

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Solution

The fourth proportional to 481,486,019.40, 722,229,029.10 and 309,299,135.40 is: 463,948,703.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    481,486,019.40 : 722,229,029.10 = 309,299,135.40 : x
  2. Step 2: Convert to fraction form
    481,486,019.40/722,229,029.10 = 309,299,135.40/x
  3. Step 3: Cross multiply
    481,486,019.40x = 722,229,029.10 × 309,299,135.40
  4. Step 4: Simplify right side
    481,486,019.40x = 223,384,814,261,411,424
  5. Step 5: Solve for x
    x = 223,384,814,261,411,424/481,486,019.40
  6. Step 6: Final answer
    x = 463,948,703.10

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1.5x scale

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.