Home / 664,305,328.40-996,457,992.60-492,118,444.40

Finding the Fourth Proportional to 664,305,328.40, 996,457,992.60 and 492,118,444.40

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Solution

The fourth proportional to 664,305,328.40, 996,457,992.60 and 492,118,444.40 is: 738,177,666.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    664,305,328.40 : 996,457,992.60 = 492,118,444.40 : x
  2. Step 2: Convert to fraction form
    664,305,328.40/996,457,992.60 = 492,118,444.40/x
  3. Step 3: Cross multiply
    664,305,328.40x = 996,457,992.60 × 492,118,444.40
  4. Step 4: Simplify right side
    664,305,328.40x = 490,375,357,228,258,688
  5. Step 5: Solve for x
    x = 490,375,357,228,258,688/664,305,328.40
  6. Step 6: Final answer
    x = 738,177,666.60

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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.