Home / 3,186,009.40-4,772,015.70-1,921,631.80

Finding the Fourth Proportional to 3,186,009.40, 4,772,015.70 and 1,921,631.80

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Solution

The fourth proportional to 3,186,009.40, 4,772,015.70 and 1,921,631.80 is: 2,878,226.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,186,009.40 : 4,772,015.70 = 1,921,631.80 : x
  2. Step 2: Convert to fraction form
    3,186,009.40/4,772,015.70 = 1,921,631.80/x
  3. Step 3: Cross multiply
    3,186,009.40x = 4,772,015.70 × 1,921,631.80
  4. Step 4: Simplify right side
    3,186,009.40x = 9,170,057,119,219.26
  5. Step 5: Solve for x
    x = 9,170,057,119,219.26/3,186,009.40
  6. Step 6: Final answer
    x = 2,878,226.64

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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.