Home / 13,281,621.20-19,922,431.80-9,922,389.20

Finding the Fourth Proportional to 13,281,621.20, 19,922,431.80 and 9,922,389.20

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Solution

The fourth proportional to 13,281,621.20, 19,922,431.80 and 9,922,389.20 is: 14,883,583.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,281,621.20 : 19,922,431.80 = 9,922,389.20 : x
  2. Step 2: Convert to fraction form
    13,281,621.20/19,922,431.80 = 9,922,389.20/x
  3. Step 3: Cross multiply
    13,281,621.20x = 19,922,431.80 × 9,922,389.20
  4. Step 4: Simplify right side
    13,281,621.20x = 197,678,122,130,056.56
  5. Step 5: Solve for x
    x = 197,678,122,130,056.56/13,281,621.20
  6. Step 6: Final answer
    x = 14,883,583.80

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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.