Home / 792,303,281.60-1,188,454,922.40-485,768,112.80

Finding the Fourth Proportional to 792,303,281.60, 1,188,454,922.40 and 485,768,112.80

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Solution

The fourth proportional to 792,303,281.60, 1,188,454,922.40 and 485,768,112.80 is: 728,652,169.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    792,303,281.60 : 1,188,454,922.40 = 485,768,112.80 : x
  2. Step 2: Convert to fraction form
    792,303,281.60/1,188,454,922.40 = 485,768,112.80/x
  3. Step 3: Cross multiply
    792,303,281.60x = 1,188,454,922.40 × 485,768,112.80
  4. Step 4: Simplify right side
    792,303,281.60x = 577,313,504,802,118,528
  5. Step 5: Solve for x
    x = 577,313,504,802,118,528/792,303,281.60
  6. Step 6: Final answer
    x = 728,652,169.20

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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.