Home / 1,128,494,272.17-1,557,279,431.07-626,735,377.29

Finding the Fourth Proportional to 1,128,494,272.17, 1,557,279,431.07 and 626,735,377.29

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Solution

The fourth proportional to 1,128,494,272.17, 1,557,279,431.07 and 626,735,377.29 is: 864,871,125.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,128,494,272.17 : 1,557,279,431.07 = 626,735,377.29 : x
  2. Step 2: Convert to fraction form
    1,128,494,272.17/1,557,279,431.07 = 626,735,377.29/x
  3. Step 3: Cross multiply
    1,128,494,272.17x = 1,557,279,431.07 × 626,735,377.29
  4. Step 4: Simplify right side
    1,128,494,272.17x = 976,002,111,777,612,928
  5. Step 5: Solve for x
    x = 976,002,111,777,612,928/1,128,494,272.17
  6. Step 6: Final answer
    x = 864,871,125.93

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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.