Home / 819,785,985,381.20-1,131,340,221,550.90-453,980,188,669.75

Finding the Fourth Proportional to 819,785,985,381.20, 1,131,340,221,550.90 and 453,980,188,669.75

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Solution

The fourth proportional to 819,785,985,381.20, 1,131,340,221,550.90 and 453,980,188,669.75 is: 626,512,353,697.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    819,785,985,381.20 : 1,131,340,221,550.90 = 453,980,188,669.75 : x
  2. Step 2: Convert to fraction form
    819,785,985,381.20/1,131,340,221,550.90 = 453,980,188,669.75/x
  3. Step 3: Cross multiply
    819,785,985,381.20x = 1,131,340,221,550.90 × 453,980,188,669.75
  4. Step 4: Simplify right side
    819,785,985,381.20x = 513,606,047,229,354,310,631,424
  5. Step 5: Solve for x
    x = 513,606,047,229,354,310,631,424/819,785,985,381.20
  6. Step 6: Final answer
    x = 626,512,353,697.44

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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.