Home / 2,120,177,422.82-2,925,750,464.50-1,215,284,638.24

Finding the Fourth Proportional to 2,120,177,422.82, 2,925,750,464.50 and 1,215,284,638.24

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Solution

The fourth proportional to 2,120,177,422.82, 2,925,750,464.50 and 1,215,284,638.24 is: 1,677,038,702.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,120,177,422.82 : 2,925,750,464.50 = 1,215,284,638.24 : x
  2. Step 2: Convert to fraction form
    2,120,177,422.82/2,925,750,464.50 = 1,215,284,638.24/x
  3. Step 3: Cross multiply
    2,120,177,422.82x = 2,925,750,464.50 × 1,215,284,638.24
  4. Step 4: Simplify right side
    2,120,177,422.82x = 3,555,619,594,830,394,368
  5. Step 5: Solve for x
    x = 3,555,619,594,830,394,368/2,120,177,422.82
  6. Step 6: Final answer
    x = 1,677,038,702.78

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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.