Home / 210,821,591.20-316,286,908.56-123,456,889.44

Finding the Fourth Proportional to 210,821,591.20, 316,286,908.56 and 123,456,889.44

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Solution

The fourth proportional to 210,821,591.20, 316,286,908.56 and 123,456,889.44 is: 185,217,262.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,821,591.20 : 316,286,908.56 = 123,456,889.44 : x
  2. Step 2: Convert to fraction form
    210,821,591.20/316,286,908.56 = 123,456,889.44/x
  3. Step 3: Cross multiply
    210,821,591.20x = 316,286,908.56 × 123,456,889.44
  4. Step 4: Simplify right side
    210,821,591.20x = 39,047,797,901,411,312
  5. Step 5: Solve for x
    x = 39,047,797,901,411,312/210,821,591.20
  6. Step 6: Final answer
    x = 185,217,262.04

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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.