Home / 13,715,970.78-20,533,596.24-9,155,708.40

Finding the Fourth Proportional to 13,715,970.78, 20,533,596.24 and 9,155,708.40

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Solution

The fourth proportional to 13,715,970.78, 20,533,596.24 and 9,155,708.40 is: 13,706,621.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,715,970.78 : 20,533,596.24 = 9,155,708.40 : x
  2. Step 2: Convert to fraction form
    13,715,970.78/20,533,596.24 = 9,155,708.40/x
  3. Step 3: Cross multiply
    13,715,970.78x = 20,533,596.24 × 9,155,708.40
  4. Step 4: Simplify right side
    13,715,970.78x = 187,999,619,576,776.41
  5. Step 5: Solve for x
    x = 187,999,619,576,776.41/13,715,970.78
  6. Step 6: Final answer
    x = 13,706,621.47

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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.