Home / 312,814,273.20-469,221,409.80-240,396,579.60

Finding the Fourth Proportional to 312,814,273.20, 469,221,409.80 and 240,396,579.60

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Solution

The fourth proportional to 312,814,273.20, 469,221,409.80 and 240,396,579.60 is: 360,594,869.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    312,814,273.20 : 469,221,409.80 = 240,396,579.60 : x
  2. Step 2: Convert to fraction form
    312,814,273.20/469,221,409.80 = 240,396,579.60/x
  3. Step 3: Cross multiply
    312,814,273.20x = 469,221,409.80 × 240,396,579.60
  4. Step 4: Simplify right side
    312,814,273.20x = 112,799,221,991,009,920
  5. Step 5: Solve for x
    x = 112,799,221,991,009,920/312,814,273.20
  6. Step 6: Final answer
    x = 360,594,869.40

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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.