Home / 28,559,512.53-39,412,812.24-15,507,321.57

Finding the Fourth Proportional to 28,559,512.53, 39,412,812.24 and 15,507,321.57

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Solution

The fourth proportional to 28,559,512.53, 39,412,812.24 and 15,507,321.57 is: 21,400,475.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,559,512.53 : 39,412,812.24 = 15,507,321.57 : x
  2. Step 2: Convert to fraction form
    28,559,512.53/39,412,812.24 = 15,507,321.57/x
  3. Step 3: Cross multiply
    28,559,512.53x = 39,412,812.24 × 15,507,321.57
  4. Step 4: Simplify right side
    28,559,512.53x = 611,187,153,383,712
  5. Step 5: Solve for x
    x = 611,187,153,383,712/28,559,512.53
  6. Step 6: Final answer
    x = 21,400,475.68

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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.