Home / 429,982,016,192.80-644,973,024,289.20-131,859,582,042.40

Finding the Fourth Proportional to 429,982,016,192.80, 644,973,024,289.20 and 131,859,582,042.40

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Solution

The fourth proportional to 429,982,016,192.80, 644,973,024,289.20 and 131,859,582,042.40 is: 197,789,373,063.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    429,982,016,192.80 : 644,973,024,289.20 = 131,859,582,042.40 : x
  2. Step 2: Convert to fraction form
    429,982,016,192.80/644,973,024,289.20 = 131,859,582,042.40/x
  3. Step 3: Cross multiply
    429,982,016,192.80x = 644,973,024,289.20 × 131,859,582,042.40
  4. Step 4: Simplify right side
    429,982,016,192.80x = 85,045,873,411,396,602,953,728
  5. Step 5: Solve for x
    x = 85,045,873,411,396,602,953,728/429,982,016,192.80
  6. Step 6: Final answer
    x = 197,789,373,063.60

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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.