Home / 6,480,021.40-9,720,032.10-1,991,714.20

Finding the Fourth Proportional to 6,480,021.40, 9,720,032.10 and 1,991,714.20

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Solution

The fourth proportional to 6,480,021.40, 9,720,032.10 and 1,991,714.20 is: 2,987,571.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,480,021.40 : 9,720,032.10 = 1,991,714.20 : x
  2. Step 2: Convert to fraction form
    6,480,021.40/9,720,032.10 = 1,991,714.20/x
  3. Step 3: Cross multiply
    6,480,021.40x = 9,720,032.10 × 1,991,714.20
  4. Step 4: Simplify right side
    6,480,021.40x = 19,359,525,958,025.82
  5. Step 5: Solve for x
    x = 19,359,525,958,025.82/6,480,021.40
  6. Step 6: Final answer
    x = 2,987,571.30

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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.