Home / 143,946,819.63-198,440,002.58-102,621,967.47

Finding the Fourth Proportional to 143,946,819.63, 198,440,002.58 and 102,621,967.47

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Solution

The fourth proportional to 143,946,819.63, 198,440,002.58 and 102,621,967.47 is: 141,471,020.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,946,819.63 : 198,440,002.58 = 102,621,967.47 : x
  2. Step 2: Convert to fraction form
    143,946,819.63/198,440,002.58 = 102,621,967.47/x
  3. Step 3: Cross multiply
    143,946,819.63x = 198,440,002.58 × 102,621,967.47
  4. Step 4: Simplify right side
    143,946,819.63x = 20,364,303,488,998,364
  5. Step 5: Solve for x
    x = 20,364,303,488,998,364/143,946,819.63
  6. Step 6: Final answer
    x = 141,471,020.63

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.