Home / 697,378,615.20-1,046,067,922.80-391,268,599.20

Finding the Fourth Proportional to 697,378,615.20, 1,046,067,922.80 and 391,268,599.20

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Solution

The fourth proportional to 697,378,615.20, 1,046,067,922.80 and 391,268,599.20 is: 586,902,898.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    697,378,615.20 : 1,046,067,922.80 = 391,268,599.20 : x
  2. Step 2: Convert to fraction form
    697,378,615.20/1,046,067,922.80 = 391,268,599.20/x
  3. Step 3: Cross multiply
    697,378,615.20x = 1,046,067,922.80 × 391,268,599.20
  4. Step 4: Simplify right side
    697,378,615.20x = 409,293,530,822,009,728
  5. Step 5: Solve for x
    x = 409,293,530,822,009,728/697,378,615.20
  6. Step 6: Final answer
    x = 586,902,898.80

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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.