Home / 208,705,321.89-311,652,545.81-170,442,736.29

Finding the Fourth Proportional to 208,705,321.89, 311,652,545.81 and 170,442,736.29

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Solution

The fourth proportional to 208,705,321.89, 311,652,545.81 and 170,442,736.29 is: 254,516,330.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,705,321.89 : 311,652,545.81 = 170,442,736.29 : x
  2. Step 2: Convert to fraction form
    208,705,321.89/311,652,545.81 = 170,442,736.29/x
  3. Step 3: Cross multiply
    208,705,321.89x = 311,652,545.81 × 170,442,736.29
  4. Step 4: Simplify right side
    208,705,321.89x = 53,118,912,678,748,760
  5. Step 5: Solve for x
    x = 53,118,912,678,748,760/208,705,321.89
  6. Step 6: Final answer
    x = 254,516,330.48

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.