Home / 12,011,361.40-18,008,483.64-5,618,128.60

Finding the Fourth Proportional to 12,011,361.40, 18,008,483.64 and 5,618,128.60

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Solution

The fourth proportional to 12,011,361.40, 18,008,483.64 and 5,618,128.60 is: 8,423,189.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,011,361.40 : 18,008,483.64 = 5,618,128.60 : x
  2. Step 2: Convert to fraction form
    12,011,361.40/18,008,483.64 = 5,618,128.60/x
  3. Step 3: Cross multiply
    12,011,361.40x = 18,008,483.64 × 5,618,128.60
  4. Step 4: Simplify right side
    12,011,361.40x = 101,173,976,980,516.09
  5. Step 5: Solve for x
    x = 101,173,976,980,516.09/12,011,361.40
  6. Step 6: Final answer
    x = 8,423,189.81

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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.