Home / 2,129,409.80-3,194,114.70-1,919,457.80

Finding the Fourth Proportional to 2,129,409.80, 3,194,114.70 and 1,919,457.80

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Solution

The fourth proportional to 2,129,409.80, 3,194,114.70 and 1,919,457.80 is: 2,879,186.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,129,409.80 : 3,194,114.70 = 1,919,457.80 : x
  2. Step 2: Convert to fraction form
    2,129,409.80/3,194,114.70 = 1,919,457.80/x
  3. Step 3: Cross multiply
    2,129,409.80x = 3,194,114.70 × 1,919,457.80
  4. Step 4: Simplify right side
    2,129,409.80x = 6,130,968,375,009.66
  5. Step 5: Solve for x
    x = 6,130,968,375,009.66/2,129,409.80
  6. Step 6: Final answer
    x = 2,879,186.70

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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.