Home / 199,330,957.20-298,996,435.80-145,583,245.20

Finding the Fourth Proportional to 199,330,957.20, 298,996,435.80 and 145,583,245.20

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Solution

The fourth proportional to 199,330,957.20, 298,996,435.80 and 145,583,245.20 is: 218,374,867.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    199,330,957.20 : 298,996,435.80 = 145,583,245.20 : x
  2. Step 2: Convert to fraction form
    199,330,957.20/298,996,435.80 = 145,583,245.20/x
  3. Step 3: Cross multiply
    199,330,957.20x = 298,996,435.80 × 145,583,245.20
  4. Step 4: Simplify right side
    199,330,957.20x = 43,528,871,426,997,456
  5. Step 5: Solve for x
    x = 43,528,871,426,997,456/199,330,957.20
  6. Step 6: Final answer
    x = 218,374,867.80

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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.