Home / 218,017,310.77-326,894,245.78-86,879,760.67

Finding the Fourth Proportional to 218,017,310.77, 326,894,245.78 and 86,879,760.67

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Solution

The fourth proportional to 218,017,310.77, 326,894,245.78 and 86,879,760.67 is: 130,267,150.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,017,310.77 : 326,894,245.78 = 86,879,760.67 : x
  2. Step 2: Convert to fraction form
    218,017,310.77/326,894,245.78 = 86,879,760.67/x
  3. Step 3: Cross multiply
    218,017,310.77x = 326,894,245.78 × 86,879,760.67
  4. Step 4: Simplify right side
    218,017,310.77x = 28,400,493,838,896,700
  5. Step 5: Solve for x
    x = 28,400,493,838,896,700/218,017,310.77
  6. Step 6: Final answer
    x = 130,267,150.52

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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.