Home / 12,045,920.40-18,075,004.20-8,005,219.20

Finding the Fourth Proportional to 12,045,920.40, 18,075,004.20 and 8,005,219.20

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Solution

The fourth proportional to 12,045,920.40, 18,075,004.20 and 8,005,219.20 is: 12,011,898.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,045,920.40 : 18,075,004.20 = 8,005,219.20 : x
  2. Step 2: Convert to fraction form
    12,045,920.40/18,075,004.20 = 8,005,219.20/x
  3. Step 3: Cross multiply
    12,045,920.40x = 18,075,004.20 × 8,005,219.20
  4. Step 4: Simplify right side
    12,045,920.40x = 144,694,370,661,920.62
  5. Step 5: Solve for x
    x = 144,694,370,661,920.62/12,045,920.40
  6. Step 6: Final answer
    x = 12,011,898.29

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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.