Home / 355,289,740.56-490,266,938.12-196,516,446.44

Finding the Fourth Proportional to 355,289,740.56, 490,266,938.12 and 196,516,446.44

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Solution

The fourth proportional to 355,289,740.56, 490,266,938.12 and 196,516,446.44 is: 271,174,496.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    355,289,740.56 : 490,266,938.12 = 196,516,446.44 : x
  2. Step 2: Convert to fraction form
    355,289,740.56/490,266,938.12 = 196,516,446.44/x
  3. Step 3: Cross multiply
    355,289,740.56x = 490,266,938.12 × 196,516,446.44
  4. Step 4: Simplify right side
    355,289,740.56x = 96,345,516,482,927,856
  5. Step 5: Solve for x
    x = 96,345,516,482,927,856/355,289,740.56
  6. Step 6: Final answer
    x = 271,174,496.43

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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.