Home / 221,870,512.63-306,170,104.08-121,396,775.32

Finding the Fourth Proportional to 221,870,512.63, 306,170,104.08 and 121,396,775.32

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Solution

The fourth proportional to 221,870,512.63, 306,170,104.08 and 121,396,775.32 is: 167,521,420.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,870,512.63 : 306,170,104.08 = 121,396,775.32 : x
  2. Step 2: Convert to fraction form
    221,870,512.63/306,170,104.08 = 121,396,775.32/x
  3. Step 3: Cross multiply
    221,870,512.63x = 306,170,104.08 × 121,396,775.32
  4. Step 4: Simplify right side
    221,870,512.63x = 37,168,063,334,700,768
  5. Step 5: Solve for x
    x = 37,168,063,334,700,768/221,870,512.63
  6. Step 6: Final answer
    x = 167,521,420.01

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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.