Home / 13,689,097.20-20,533,645.80-8,303,828.40

Finding the Fourth Proportional to 13,689,097.20, 20,533,645.80 and 8,303,828.40

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Solution

The fourth proportional to 13,689,097.20, 20,533,645.80 and 8,303,828.40 is: 12,455,742.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,689,097.20 : 20,533,645.80 = 8,303,828.40 : x
  2. Step 2: Convert to fraction form
    13,689,097.20/20,533,645.80 = 8,303,828.40/x
  3. Step 3: Cross multiply
    13,689,097.20x = 20,533,645.80 × 8,303,828.40
  4. Step 4: Simplify right side
    13,689,097.20x = 170,507,871,149,580.72
  5. Step 5: Solve for x
    x = 170,507,871,149,580.72/13,689,097.20
  6. Step 6: Final answer
    x = 12,455,742.60

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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.