Home / 12,880,552.80-19,320,829.20-7,841,704.80

Finding the Fourth Proportional to 12,880,552.80, 19,320,829.20 and 7,841,704.80

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Solution

The fourth proportional to 12,880,552.80, 19,320,829.20 and 7,841,704.80 is: 11,762,557.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,880,552.80 : 19,320,829.20 = 7,841,704.80 : x
  2. Step 2: Convert to fraction form
    12,880,552.80/19,320,829.20 = 7,841,704.80/x
  3. Step 3: Cross multiply
    12,880,552.80x = 19,320,829.20 × 7,841,704.80
  4. Step 4: Simplify right side
    12,880,552.80x = 151,508,239,077,620.16
  5. Step 5: Solve for x
    x = 151,508,239,077,620.16/12,880,552.80
  6. Step 6: Final answer
    x = 11,762,557.20

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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.