Home / 1,777,128,676.80-2,665,693,015.20-858,798,628.80

Finding the Fourth Proportional to 1,777,128,676.80, 2,665,693,015.20 and 858,798,628.80

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Solution

The fourth proportional to 1,777,128,676.80, 2,665,693,015.20 and 858,798,628.80 is: 1,288,197,943.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,777,128,676.80 : 2,665,693,015.20 = 858,798,628.80 : x
  2. Step 2: Convert to fraction form
    1,777,128,676.80/2,665,693,015.20 = 858,798,628.80/x
  3. Step 3: Cross multiply
    1,777,128,676.80x = 2,665,693,015.20 × 858,798,628.80
  4. Step 4: Simplify right side
    1,777,128,676.80x = 2,289,293,506,255,497,216
  5. Step 5: Solve for x
    x = 2,289,293,506,255,497,216/1,777,128,676.80
  6. Step 6: Final answer
    x = 1,288,197,943.20

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1.5x scale

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.