Home / 1,218,380,182.90-1,681,363,377.22-682,535,619.76

Finding the Fourth Proportional to 1,218,380,182.90, 1,681,363,377.22 and 682,535,619.76

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Solution

The fourth proportional to 1,218,380,182.90, 1,681,363,377.22 and 682,535,619.76 is: 941,898,440.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,218,380,182.90 : 1,681,363,377.22 = 682,535,619.76 : x
  2. Step 2: Convert to fraction form
    1,218,380,182.90/1,681,363,377.22 = 682,535,619.76/x
  3. Step 3: Cross multiply
    1,218,380,182.90x = 1,681,363,377.22 × 682,535,619.76
  4. Step 4: Simplify right side
    1,218,380,182.90x = 1,147,590,394,714,229,248
  5. Step 5: Solve for x
    x = 1,147,590,394,714,229,248/1,218,380,182.90
  6. Step 6: Final answer
    x = 941,898,440.92

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Double scale
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1.5x scale

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.