Home / 20,848,156.74-31,280,806.53-9,170,515.80

Finding the Fourth Proportional to 20,848,156.74, 31,280,806.53 and 9,170,515.80

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Solution

The fourth proportional to 20,848,156.74, 31,280,806.53 and 9,170,515.80 is: 13,759,544.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,848,156.74 : 31,280,806.53 = 9,170,515.80 : x
  2. Step 2: Convert to fraction form
    20,848,156.74/31,280,806.53 = 9,170,515.80/x
  3. Step 3: Cross multiply
    20,848,156.74x = 31,280,806.53 × 9,170,515.80
  4. Step 4: Simplify right side
    20,848,156.74x = 286,861,130,520,108.19
  5. Step 5: Solve for x
    x = 286,861,130,520,108.19/20,848,156.74
  6. Step 6: Final answer
    x = 13,759,544.03

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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.