Home / 325,728,748.80-488,593,123.20-290,015,913.60

Finding the Fourth Proportional to 325,728,748.80, 488,593,123.20 and 290,015,913.60

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Solution

The fourth proportional to 325,728,748.80, 488,593,123.20 and 290,015,913.60 is: 435,023,870.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    325,728,748.80 : 488,593,123.20 = 290,015,913.60 : x
  2. Step 2: Convert to fraction form
    325,728,748.80/488,593,123.20 = 290,015,913.60/x
  3. Step 3: Cross multiply
    325,728,748.80x = 488,593,123.20 × 290,015,913.60
  4. Step 4: Simplify right side
    325,728,748.80x = 141,699,781,003,525,360
  5. Step 5: Solve for x
    x = 141,699,781,003,525,360/325,728,748.80
  6. Step 6: Final answer
    x = 435,023,870.40

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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.