Home / 206,679,938.70-309,912,260.48-97,475,788.36

Finding the Fourth Proportional to 206,679,938.70, 309,912,260.48 and 97,475,788.36

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Solution

The fourth proportional to 206,679,938.70, 309,912,260.48 and 97,475,788.36 is: 146,162,913.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    206,679,938.70 : 309,912,260.48 = 97,475,788.36 : x
  2. Step 2: Convert to fraction form
    206,679,938.70/309,912,260.48 = 97,475,788.36/x
  3. Step 3: Cross multiply
    206,679,938.70x = 309,912,260.48 × 97,475,788.36
  4. Step 4: Simplify right side
    206,679,938.70x = 30,208,941,912,717,672
  5. Step 5: Solve for x
    x = 30,208,941,912,717,672/206,679,938.70
  6. Step 6: Final answer
    x = 146,162,913.07

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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.