Home / 80,574,913,859.60-120,862,370,789.40-45,746,396,483.60

Finding the Fourth Proportional to 80,574,913,859.60, 120,862,370,789.40 and 45,746,396,483.60

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Solution

The fourth proportional to 80,574,913,859.60, 120,862,370,789.40 and 45,746,396,483.60 is: 68,619,594,725.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,574,913,859.60 : 120,862,370,789.40 = 45,746,396,483.60 : x
  2. Step 2: Convert to fraction form
    80,574,913,859.60/120,862,370,789.40 = 45,746,396,483.60/x
  3. Step 3: Cross multiply
    80,574,913,859.60x = 120,862,370,789.40 × 45,746,396,483.60
  4. Step 4: Simplify right side
    80,574,913,859.60x = 5,529,017,934,079,766,560,768
  5. Step 5: Solve for x
    x = 5,529,017,934,079,766,560,768/80,574,913,859.60
  6. Step 6: Final answer
    x = 68,619,594,725.40

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Double scale
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Similar ratio
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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.