Home / 1,131,115,000.40-1,692,846,125.40-993,365,493.20

Finding the Fourth Proportional to 1,131,115,000.40, 1,692,846,125.40 and 993,365,493.20

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Solution

The fourth proportional to 1,131,115,000.40, 1,692,846,125.40 and 993,365,493.20 is: 1,486,687,848.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,131,115,000.40 : 1,692,846,125.40 = 993,365,493.20 : x
  2. Step 2: Convert to fraction form
    1,131,115,000.40/1,692,846,125.40 = 993,365,493.20/x
  3. Step 3: Cross multiply
    1,131,115,000.40x = 1,692,846,125.40 × 993,365,493.20
  4. Step 4: Simplify right side
    1,131,115,000.40x = 1,681,614,926,269,680,128
  5. Step 5: Solve for x
    x = 1,681,614,926,269,680,128/1,131,115,000.40
  6. Step 6: Final answer
    x = 1,486,687,848.43

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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.