Home / 20,856,807,653.74-28,782,940,060.24-11,341,915,890.42

Finding the Fourth Proportional to 20,856,807,653.74, 28,782,940,060.24 and 11,341,915,890.42

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Solution

The fourth proportional to 20,856,807,653.74, 28,782,940,060.24 and 11,341,915,890.42 is: 15,652,140,570.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,856,807,653.74 : 28,782,940,060.24 = 11,341,915,890.42 : x
  2. Step 2: Convert to fraction form
    20,856,807,653.74/28,782,940,060.24 = 11,341,915,890.42/x
  3. Step 3: Cross multiply
    20,856,807,653.74x = 28,782,940,060.24 × 11,341,915,890.42
  4. Step 4: Simplify right side
    20,856,807,653.74x = 326,453,685,242,242,465,792
  5. Step 5: Solve for x
    x = 326,453,685,242,242,465,792/20,856,807,653.74
  6. Step 6: Final answer
    x = 15,652,140,570.21

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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.