Home / 670,246,933.40-1,005,370,400.10-621,873,992.60

Finding the Fourth Proportional to 670,246,933.40, 1,005,370,400.10 and 621,873,992.60

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Solution

The fourth proportional to 670,246,933.40, 1,005,370,400.10 and 621,873,992.60 is: 932,810,988.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    670,246,933.40 : 1,005,370,400.10 = 621,873,992.60 : x
  2. Step 2: Convert to fraction form
    670,246,933.40/1,005,370,400.10 = 621,873,992.60/x
  3. Step 3: Cross multiply
    670,246,933.40x = 1,005,370,400.10 × 621,873,992.60
  4. Step 4: Simplify right side
    670,246,933.40x = 625,213,704,752,046,464
  5. Step 5: Solve for x
    x = 625,213,704,752,046,464/670,246,933.40
  6. Step 6: Final answer
    x = 932,810,988.90

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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.