Home / 505,485,808.20-758,228,712.30-413,652,803.40

Finding the Fourth Proportional to 505,485,808.20, 758,228,712.30 and 413,652,803.40

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Solution

The fourth proportional to 505,485,808.20, 758,228,712.30 and 413,652,803.40 is: 620,479,205.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    505,485,808.20 : 758,228,712.30 = 413,652,803.40 : x
  2. Step 2: Convert to fraction form
    505,485,808.20/758,228,712.30 = 413,652,803.40/x
  3. Step 3: Cross multiply
    505,485,808.20x = 758,228,712.30 × 413,652,803.40
  4. Step 4: Simplify right side
    505,485,808.20x = 313,643,432,461,267,008
  5. Step 5: Solve for x
    x = 313,643,432,461,267,008/505,485,808.20
  6. Step 6: Final answer
    x = 620,479,205.10

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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.