Home / 662,821,938.93-993,107,812.78-399,954,166.36

Finding the Fourth Proportional to 662,821,938.93, 993,107,812.78 and 399,954,166.36

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Solution

The fourth proportional to 662,821,938.93, 993,107,812.78 and 399,954,166.36 is: 599,252,354.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    662,821,938.93 : 993,107,812.78 = 399,954,166.36 : x
  2. Step 2: Convert to fraction form
    662,821,938.93/993,107,812.78 = 399,954,166.36/x
  3. Step 3: Cross multiply
    662,821,938.93x = 993,107,812.78 × 399,954,166.36
  4. Step 4: Simplify right side
    662,821,938.93x = 397,197,607,364,045,056
  5. Step 5: Solve for x
    x = 397,197,607,364,045,056/662,821,938.93
  6. Step 6: Final answer
    x = 599,252,354.26

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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.