Home / 819,785,985,380.55-1,131,340,221,550-453,980,188,669.12

Finding the Fourth Proportional to 819,785,985,380.55, 1,131,340,221,550 and 453,980,188,669.12

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Solution

The fourth proportional to 819,785,985,380.55, 1,131,340,221,550 and 453,980,188,669.12 is: 626,512,353,696.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    819,785,985,380.55 : 1,131,340,221,550 = 453,980,188,669.12 : x
  2. Step 2: Convert to fraction form
    819,785,985,380.55/1,131,340,221,550 = 453,980,188,669.12/x
  3. Step 3: Cross multiply
    819,785,985,380.55x = 1,131,340,221,550 × 453,980,188,669.12
  4. Step 4: Simplify right side
    819,785,985,380.55x = 513,606,047,228,232,988,622,848
  5. Step 5: Solve for x
    x = 513,606,047,228,232,988,622,848/819,785,985,380.55
  6. Step 6: Final answer
    x = 626,512,353,696.57

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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.