Home / 74,318,409.81-111,491,970.83-28,256,697.45

Finding the Fourth Proportional to 74,318,409.81, 111,491,970.83 and 28,256,697.45

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Solution

The fourth proportional to 74,318,409.81, 111,491,970.83 and 28,256,697.45 is: 42,390,504.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,318,409.81 : 111,491,970.83 = 28,256,697.45 : x
  2. Step 2: Convert to fraction form
    74,318,409.81/111,491,970.83 = 28,256,697.45/x
  3. Step 3: Cross multiply
    74,318,409.81x = 111,491,970.83 × 28,256,697.45
  4. Step 4: Simplify right side
    74,318,409.81x = 3,150,394,887,847,535
  5. Step 5: Solve for x
    x = 3,150,394,887,847,535/74,318,409.81
  6. Step 6: Final answer
    x = 42,390,504.53

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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.