Home / 13,625,946.12-18,803,172.06-7,820,641.56

Finding the Fourth Proportional to 13,625,946.12, 18,803,172.06 and 7,820,641.56

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Solution

The fourth proportional to 13,625,946.12, 18,803,172.06 and 7,820,641.56 is: 10,792,121.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,625,946.12 : 18,803,172.06 = 7,820,641.56 : x
  2. Step 2: Convert to fraction form
    13,625,946.12/18,803,172.06 = 7,820,641.56/x
  3. Step 3: Cross multiply
    13,625,946.12x = 18,803,172.06 × 7,820,641.56
  4. Step 4: Simplify right side
    13,625,946.12x = 147,052,868,872,266.78
  5. Step 5: Solve for x
    x = 147,052,868,872,266.78/13,625,946.12
  6. Step 6: Final answer
    x = 10,792,121.70

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.