Home / 9,965,138.40-14,947,707.60-5,418,365.40

Finding the Fourth Proportional to 9,965,138.40, 14,947,707.60 and 5,418,365.40

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Solution

The fourth proportional to 9,965,138.40, 14,947,707.60 and 5,418,365.40 is: 8,127,548.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,965,138.40 : 14,947,707.60 = 5,418,365.40 : x
  2. Step 2: Convert to fraction form
    9,965,138.40/14,947,707.60 = 5,418,365.40/x
  3. Step 3: Cross multiply
    9,965,138.40x = 14,947,707.60 × 5,418,365.40
  4. Step 4: Simplify right side
    9,965,138.40x = 80,992,141,669,157.05
  5. Step 5: Solve for x
    x = 80,992,141,669,157.05/9,965,138.40
  6. Step 6: Final answer
    x = 8,127,548.10

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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.