Home / 912,961,984.09-1,259,781,249.63-511,097,738.32

Finding the Fourth Proportional to 912,961,984.09, 1,259,781,249.63 and 511,097,738.32

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Solution

The fourth proportional to 912,961,984.09, 1,259,781,249.63 and 511,097,738.32 is: 705,255,376.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    912,961,984.09 : 1,259,781,249.63 = 511,097,738.32 : x
  2. Step 2: Convert to fraction form
    912,961,984.09/1,259,781,249.63 = 511,097,738.32/x
  3. Step 3: Cross multiply
    912,961,984.09x = 1,259,781,249.63 × 511,097,738.32
  4. Step 4: Simplify right side
    912,961,984.09x = 643,871,347,458,131,328
  5. Step 5: Solve for x
    x = 643,871,347,458,131,328/912,961,984.09
  6. Step 6: Final answer
    x = 705,255,376.11

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Double scale
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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.