Home / 300,444,843.30-414,406,875.60-211,325,799.84

Finding the Fourth Proportional to 300,444,843.30, 414,406,875.60 and 211,325,799.84

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Solution

The fourth proportional to 300,444,843.30, 414,406,875.60 and 211,325,799.84 is: 291,483,999.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    300,444,843.30 : 414,406,875.60 = 211,325,799.84 : x
  2. Step 2: Convert to fraction form
    300,444,843.30/414,406,875.60 = 211,325,799.84/x
  3. Step 3: Cross multiply
    300,444,843.30x = 414,406,875.60 × 211,325,799.84
  4. Step 4: Simplify right side
    300,444,843.30x = 87,574,864,445,365,392
  5. Step 5: Solve for x
    x = 87,574,864,445,365,392/300,444,843.30
  6. Step 6: Final answer
    x = 291,483,999.14

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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.