Home / 13,257,428.46-18,303,656.48-9,078,106.29

Finding the Fourth Proportional to 13,257,428.46, 18,303,656.48 and 9,078,106.29

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Solution

The fourth proportional to 13,257,428.46, 18,303,656.48 and 9,078,106.29 is: 12,533,542.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,257,428.46 : 18,303,656.48 = 9,078,106.29 : x
  2. Step 2: Convert to fraction form
    13,257,428.46/18,303,656.48 = 9,078,106.29/x
  3. Step 3: Cross multiply
    13,257,428.46x = 18,303,656.48 × 9,078,106.29
  4. Step 4: Simplify right side
    13,257,428.46x = 166,162,539,021,087.25
  5. Step 5: Solve for x
    x = 166,162,539,021,087.25/13,257,428.46
  6. Step 6: Final answer
    x = 12,533,542.20

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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.