Home / 221,870,788.30-306,170,484.60-121,397,050.90

Finding the Fourth Proportional to 221,870,788.30, 306,170,484.60 and 121,397,050.90

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Solution

The fourth proportional to 221,870,788.30, 306,170,484.60 and 121,397,050.90 is: 167,521,800.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,870,788.30 : 306,170,484.60 = 121,397,050.90 : x
  2. Step 2: Convert to fraction form
    221,870,788.30/306,170,484.60 = 121,397,050.90/x
  3. Step 3: Cross multiply
    221,870,788.30x = 306,170,484.60 × 121,397,050.90
  4. Step 4: Simplify right side
    221,870,788.30x = 37,168,193,903,063,872
  5. Step 5: Solve for x
    x = 37,168,193,903,063,872/221,870,788.30
  6. Step 6: Final answer
    x = 167,521,800.36

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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.