Home / 13,920,075.44-20,873,362.60-8,164,689.76

Finding the Fourth Proportional to 13,920,075.44, 20,873,362.60 and 8,164,689.76

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Solution

The fourth proportional to 13,920,075.44, 20,873,362.60 and 8,164,689.76 is: 12,243,075.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,920,075.44 : 20,873,362.60 = 8,164,689.76 : x
  2. Step 2: Convert to fraction form
    13,920,075.44/20,873,362.60 = 8,164,689.76/x
  3. Step 3: Cross multiply
    13,920,075.44x = 20,873,362.60 × 8,164,689.76
  4. Step 4: Simplify right side
    13,920,075.44x = 170,424,529,876,986.97
  5. Step 5: Solve for x
    x = 170,424,529,876,986.97/13,920,075.44
  6. Step 6: Final answer
    x = 12,243,075.16

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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.