Home / 2,130,040.80-3,195,061.20-1,290,232.80

Finding the Fourth Proportional to 2,130,040.80, 3,195,061.20 and 1,290,232.80

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Solution

The fourth proportional to 2,130,040.80, 3,195,061.20 and 1,290,232.80 is: 1,935,349.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,130,040.80 : 3,195,061.20 = 1,290,232.80 : x
  2. Step 2: Convert to fraction form
    2,130,040.80/3,195,061.20 = 1,290,232.80/x
  3. Step 3: Cross multiply
    2,130,040.80x = 3,195,061.20 × 1,290,232.80
  4. Step 4: Simplify right side
    2,130,040.80x = 4,122,372,758,247.36
  5. Step 5: Solve for x
    x = 4,122,372,758,247.36/2,130,040.80
  6. Step 6: Final answer
    x = 1,935,349.20

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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.