Home / 215,573,043.20-323,359,564.80-191,764,486.40

Finding the Fourth Proportional to 215,573,043.20, 323,359,564.80 and 191,764,486.40

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Solution

The fourth proportional to 215,573,043.20, 323,359,564.80 and 191,764,486.40 is: 287,646,729.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,573,043.20 : 323,359,564.80 = 191,764,486.40 : x
  2. Step 2: Convert to fraction form
    215,573,043.20/323,359,564.80 = 191,764,486.40/x
  3. Step 3: Cross multiply
    215,573,043.20x = 323,359,564.80 × 191,764,486.40
  4. Step 4: Simplify right side
    215,573,043.20x = 62,008,880,866,399,520
  5. Step 5: Solve for x
    x = 62,008,880,866,399,520/215,573,043.20
  6. Step 6: Final answer
    x = 287,646,729.60

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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.