Home / 682,939,612.40-1,023,065,725.80-409,498,127.60

Finding the Fourth Proportional to 682,939,612.40, 1,023,065,725.80 and 409,498,127.60

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Solution

The fourth proportional to 682,939,612.40, 1,023,065,725.80 and 409,498,127.60 is: 613,441,498.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    682,939,612.40 : 1,023,065,725.80 = 409,498,127.60 : x
  2. Step 2: Convert to fraction form
    682,939,612.40/1,023,065,725.80 = 409,498,127.60/x
  3. Step 3: Cross multiply
    682,939,612.40x = 1,023,065,725.80 × 409,498,127.60
  4. Step 4: Simplify right side
    682,939,612.40x = 418,943,499,126,835,008
  5. Step 5: Solve for x
    x = 418,943,499,126,835,008/682,939,612.40
  6. Step 6: Final answer
    x = 613,441,498.37

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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.