Home / 325,728,749.80-488,593,124.70-290,015,914.60

Finding the Fourth Proportional to 325,728,749.80, 488,593,124.70 and 290,015,914.60

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Solution

The fourth proportional to 325,728,749.80, 488,593,124.70 and 290,015,914.60 is: 435,023,871.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    325,728,749.80 : 488,593,124.70 = 290,015,914.60 : x
  2. Step 2: Convert to fraction form
    325,728,749.80/488,593,124.70 = 290,015,914.60/x
  3. Step 3: Cross multiply
    325,728,749.80x = 488,593,124.70 × 290,015,914.60
  4. Step 4: Simplify right side
    325,728,749.80x = 141,699,781,927,142,352
  5. Step 5: Solve for x
    x = 141,699,781,927,142,352/325,728,749.80
  6. Step 6: Final answer
    x = 435,023,871.90

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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.