Home / 2,666,825.40-3,680,228.76-1,443,130.80

Finding the Fourth Proportional to 2,666,825.40, 3,680,228.76 and 1,443,130.80

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Solution

The fourth proportional to 2,666,825.40, 3,680,228.76 and 1,443,130.80 is: 1,991,525.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,666,825.40 : 3,680,228.76 = 1,443,130.80 : x
  2. Step 2: Convert to fraction form
    2,666,825.40/3,680,228.76 = 1,443,130.80/x
  3. Step 3: Cross multiply
    2,666,825.40x = 3,680,228.76 × 1,443,130.80
  4. Step 4: Simplify right side
    2,666,825.40x = 5,311,051,474,601.81
  5. Step 5: Solve for x
    x = 5,311,051,474,601.81/2,666,825.40
  6. Step 6: Final answer
    x = 1,991,525.76

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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.