Home / 812,177,377.38-1,120,818,411-440,899,408.62

Finding the Fourth Proportional to 812,177,377.38, 1,120,818,411 and 440,899,408.62

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Solution

The fourth proportional to 812,177,377.38, 1,120,818,411 and 440,899,408.62 is: 608,448,583.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    812,177,377.38 : 1,120,818,411 = 440,899,408.62 : x
  2. Step 2: Convert to fraction form
    812,177,377.38/1,120,818,411 = 440,899,408.62/x
  3. Step 3: Cross multiply
    812,177,377.38x = 1,120,818,411 × 440,899,408.62
  4. Step 4: Simplify right side
    812,177,377.38x = 494,168,174,580,308,096
  5. Step 5: Solve for x
    x = 494,168,174,580,308,096/812,177,377.38
  6. Step 6: Final answer
    x = 608,448,583.21

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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.