Home / 13,583,821.68-18,742,955.04-7,784,422.56

Finding the Fourth Proportional to 13,583,821.68, 18,742,955.04 and 7,784,422.56

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Solution

The fourth proportional to 13,583,821.68, 18,742,955.04 and 7,784,422.56 is: 10,740,945.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,583,821.68 : 18,742,955.04 = 7,784,422.56 : x
  2. Step 2: Convert to fraction form
    13,583,821.68/18,742,955.04 = 7,784,422.56/x
  3. Step 3: Cross multiply
    13,583,821.68x = 18,742,955.04 × 7,784,422.56
  4. Step 4: Simplify right side
    13,583,821.68x = 145,903,082,054,441.69
  5. Step 5: Solve for x
    x = 145,903,082,054,441.69/13,583,821.68
  6. Step 6: Final answer
    x = 10,740,945.04

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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.