Home / 221,870,788.80-306,170,485.29-121,397,051.40

Finding the Fourth Proportional to 221,870,788.80, 306,170,485.29 and 121,397,051.40

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Solution

The fourth proportional to 221,870,788.80, 306,170,485.29 and 121,397,051.40 is: 167,521,801.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,870,788.80 : 306,170,485.29 = 121,397,051.40 : x
  2. Step 2: Convert to fraction form
    221,870,788.80/306,170,485.29 = 121,397,051.40/x
  3. Step 3: Cross multiply
    221,870,788.80x = 306,170,485.29 × 121,397,051.40
  4. Step 4: Simplify right side
    221,870,788.80x = 37,168,194,139,913,080
  5. Step 5: Solve for x
    x = 37,168,194,139,913,080/221,870,788.80
  6. Step 6: Final answer
    x = 167,521,801.05

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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.