Home / 21,288,000.30-31,932,000.45-6,142,425.90

Finding the Fourth Proportional to 21,288,000.30, 31,932,000.45 and 6,142,425.90

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Solution

The fourth proportional to 21,288,000.30, 31,932,000.45 and 6,142,425.90 is: 9,213,638.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,288,000.30 : 31,932,000.45 = 6,142,425.90 : x
  2. Step 2: Convert to fraction form
    21,288,000.30/31,932,000.45 = 6,142,425.90/x
  3. Step 3: Cross multiply
    21,288,000.30x = 31,932,000.45 × 6,142,425.90
  4. Step 4: Simplify right side
    21,288,000.30x = 196,139,946,602,891.66
  5. Step 5: Solve for x
    x = 196,139,946,602,891.66/21,288,000.30
  6. Step 6: Final answer
    x = 9,213,638.85

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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.