Home / 31,478,651.63-43,440,629.27-18,250,399.32

Finding the Fourth Proportional to 31,478,651.63, 43,440,629.27 and 18,250,399.32

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Solution

The fourth proportional to 31,478,651.63, 43,440,629.27 and 18,250,399.32 is: 25,185,603.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,478,651.63 : 43,440,629.27 = 18,250,399.32 : x
  2. Step 2: Convert to fraction form
    31,478,651.63/43,440,629.27 = 18,250,399.32/x
  3. Step 3: Cross multiply
    31,478,651.63x = 43,440,629.27 × 18,250,399.32
  4. Step 4: Simplify right side
    31,478,651.63x = 792,808,830,879,779.25
  5. Step 5: Solve for x
    x = 792,808,830,879,779.25/31,478,651.63
  6. Step 6: Final answer
    x = 25,185,603.25

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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.