Home / 20,391,765,706.64-28,139,368,730.67-11,235,782,166.77

Finding the Fourth Proportional to 20,391,765,706.64, 28,139,368,730.67 and 11,235,782,166.77

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Solution

The fourth proportional to 20,391,765,706.64, 28,139,368,730.67 and 11,235,782,166.77 is: 15,504,680,757.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,391,765,706.64 : 28,139,368,730.67 = 11,235,782,166.77 : x
  2. Step 2: Convert to fraction form
    20,391,765,706.64/28,139,368,730.67 = 11,235,782,166.77/x
  3. Step 3: Cross multiply
    20,391,765,706.64x = 28,139,368,730.67 × 11,235,782,166.77
  4. Step 4: Simplify right side
    20,391,765,706.64x = 316,167,817,368,052,957,184
  5. Step 5: Solve for x
    x = 316,167,817,368,052,957,184/20,391,765,706.64
  6. Step 6: Final answer
    x = 15,504,680,757.74

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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.