Home / 221,292,595.20-331,938,892.80-199,373,606.40

Finding the Fourth Proportional to 221,292,595.20, 331,938,892.80 and 199,373,606.40

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Solution

The fourth proportional to 221,292,595.20, 331,938,892.80 and 199,373,606.40 is: 299,060,409.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,292,595.20 : 331,938,892.80 = 199,373,606.40 : x
  2. Step 2: Convert to fraction form
    221,292,595.20/331,938,892.80 = 199,373,606.40/x
  3. Step 3: Cross multiply
    221,292,595.20x = 331,938,892.80 × 199,373,606.40
  4. Step 4: Simplify right side
    221,292,595.20x = 66,179,854,161,959,000
  5. Step 5: Solve for x
    x = 66,179,854,161,959,000/221,292,595.20
  6. Step 6: Final answer
    x = 299,060,409.60

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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.