Home / 13,583,818.68-18,742,950.90-7,784,419.56

Finding the Fourth Proportional to 13,583,818.68, 18,742,950.90 and 7,784,419.56

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Solution

The fourth proportional to 13,583,818.68, 18,742,950.90 and 7,784,419.56 is: 10,740,940.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,583,818.68 : 18,742,950.90 = 7,784,419.56 : x
  2. Step 2: Convert to fraction form
    13,583,818.68/18,742,950.90 = 7,784,419.56/x
  3. Step 3: Cross multiply
    13,583,818.68x = 18,742,950.90 × 7,784,419.56
  4. Step 4: Simplify right side
    13,583,818.68x = 145,902,993,598,079.59
  5. Step 5: Solve for x
    x = 145,902,993,598,079.59/13,583,818.68
  6. Step 6: Final answer
    x = 10,740,940.90

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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.