Home / 690,904,772.80-953,447,204.04-393,546,902.32

Finding the Fourth Proportional to 690,904,772.80, 953,447,204.04 and 393,546,902.32

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Solution

The fourth proportional to 690,904,772.80, 953,447,204.04 and 393,546,902.32 is: 543,093,937.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    690,904,772.80 : 953,447,204.04 = 393,546,902.32 : x
  2. Step 2: Convert to fraction form
    690,904,772.80/953,447,204.04 = 393,546,902.32/x
  3. Step 3: Cross multiply
    690,904,772.80x = 953,447,204.04 × 393,546,902.32
  4. Step 4: Simplify right side
    690,904,772.80x = 375,226,193,675,606,976
  5. Step 5: Solve for x
    x = 375,226,193,675,606,976/690,904,772.80
  6. Step 6: Final answer
    x = 543,093,937.76

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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.