Home / 514,084,089.90-709,436,883.96-279,135,204.78

Finding the Fourth Proportional to 514,084,089.90, 709,436,883.96 and 279,135,204.78

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Solution

The fourth proportional to 514,084,089.90, 709,436,883.96 and 279,135,204.78 is: 385,207,038.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    514,084,089.90 : 709,436,883.96 = 279,135,204.78 : x
  2. Step 2: Convert to fraction form
    514,084,089.90/709,436,883.96 = 279,135,204.78/x
  3. Step 3: Cross multiply
    514,084,089.90x = 709,436,883.96 × 279,135,204.78
  4. Step 4: Simplify right side
    514,084,089.90x = 198,028,809,882,659,680
  5. Step 5: Solve for x
    x = 198,028,809,882,659,680/514,084,089.90
  6. Step 6: Final answer
    x = 385,207,038.64

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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.