Home / 12,426,075.81-18,640,190.88-3,792,120.17

Finding the Fourth Proportional to 12,426,075.81, 18,640,190.88 and 3,792,120.17

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Solution

The fourth proportional to 12,426,075.81, 18,640,190.88 and 3,792,120.17 is: 5,688,508.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,426,075.81 : 18,640,190.88 = 3,792,120.17 : x
  2. Step 2: Convert to fraction form
    12,426,075.81/18,640,190.88 = 3,792,120.17/x
  3. Step 3: Cross multiply
    12,426,075.81x = 18,640,190.88 × 3,792,120.17
  4. Step 4: Simplify right side
    12,426,075.81x = 70,685,843,715,497.09
  5. Step 5: Solve for x
    x = 70,685,843,715,497.09/12,426,075.81
  6. Step 6: Final answer
    x = 5,688,508.97

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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.