Home / 12,137,313.20-18,205,969.80-5,760,021.20

Finding the Fourth Proportional to 12,137,313.20, 18,205,969.80 and 5,760,021.20

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Solution

The fourth proportional to 12,137,313.20, 18,205,969.80 and 5,760,021.20 is: 8,640,031.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,137,313.20 : 18,205,969.80 = 5,760,021.20 : x
  2. Step 2: Convert to fraction form
    12,137,313.20/18,205,969.80 = 5,760,021.20/x
  3. Step 3: Cross multiply
    12,137,313.20x = 18,205,969.80 × 5,760,021.20
  4. Step 4: Simplify right side
    12,137,313.20x = 104,866,772,014,559.77
  5. Step 5: Solve for x
    x = 104,866,772,014,559.77/12,137,313.20
  6. Step 6: Final answer
    x = 8,640,031.80

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1.5x scale

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.