Home / 13,477,111.20-20,201,888.70-6,643,173.60

Finding the Fourth Proportional to 13,477,111.20, 20,201,888.70 and 6,643,173.60

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Solution

The fourth proportional to 13,477,111.20, 20,201,888.70 and 6,643,173.60 is: 9,957,968.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,477,111.20 : 20,201,888.70 = 6,643,173.60 : x
  2. Step 2: Convert to fraction form
    13,477,111.20/20,201,888.70 = 6,643,173.60/x
  3. Step 3: Cross multiply
    13,477,111.20x = 20,201,888.70 × 6,643,173.60
  4. Step 4: Simplify right side
    13,477,111.20x = 134,204,653,681,978.31
  5. Step 5: Solve for x
    x = 134,204,653,681,978.31/13,477,111.20
  6. Step 6: Final answer
    x = 9,957,968.86

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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.