Home / 280,040,098.22-386,445,205.10-154,589,599.67

Finding the Fourth Proportional to 280,040,098.22, 386,445,205.10 and 154,589,599.67

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Solution

The fourth proportional to 280,040,098.22, 386,445,205.10 and 154,589,599.67 is: 213,328,055.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    280,040,098.22 : 386,445,205.10 = 154,589,599.67 : x
  2. Step 2: Convert to fraction form
    280,040,098.22/386,445,205.10 = 154,589,599.67/x
  3. Step 3: Cross multiply
    280,040,098.22x = 386,445,205.10 × 154,589,599.67
  4. Step 4: Simplify right side
    280,040,098.22x = 59,740,409,550,800,040
  5. Step 5: Solve for x
    x = 59,740,409,550,800,040/280,040,098.22
  6. Step 6: Final answer
    x = 213,328,055.27

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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.