Home / 1,398,202,788.72-2,097,580,469.37-512,896,367.61

Finding the Fourth Proportional to 1,398,202,788.72, 2,097,580,469.37 and 512,896,367.61

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Solution

The fourth proportional to 1,398,202,788.72, 2,097,580,469.37 and 512,896,367.61 is: 769,445,900.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,398,202,788.72 : 2,097,580,469.37 = 512,896,367.61 : x
  2. Step 2: Convert to fraction form
    1,398,202,788.72/2,097,580,469.37 = 512,896,367.61/x
  3. Step 3: Cross multiply
    1,398,202,788.72x = 2,097,580,469.37 × 512,896,367.61
  4. Step 4: Simplify right side
    1,398,202,788.72x = 1,075,841,403,509,551,872
  5. Step 5: Solve for x
    x = 1,075,841,403,509,551,872/1,398,202,788.72
  6. Step 6: Final answer
    x = 769,445,900.26

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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.