Home / 808,725,907.70-1,213,088,861.55-324,399,302.90

Finding the Fourth Proportional to 808,725,907.70, 1,213,088,861.55 and 324,399,302.90

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Solution

The fourth proportional to 808,725,907.70, 1,213,088,861.55 and 324,399,302.90 is: 486,598,954.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    808,725,907.70 : 1,213,088,861.55 = 324,399,302.90 : x
  2. Step 2: Convert to fraction form
    808,725,907.70/1,213,088,861.55 = 324,399,302.90/x
  3. Step 3: Cross multiply
    808,725,907.70x = 1,213,088,861.55 × 324,399,302.90
  4. Step 4: Simplify right side
    808,725,907.70x = 393,525,181,042,574,592
  5. Step 5: Solve for x
    x = 393,525,181,042,574,592/808,725,907.70
  6. Step 6: Final answer
    x = 486,598,954.35

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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.