Home / 39,993,041.40-55,190,122.38-21,657,907.32

Finding the Fourth Proportional to 39,993,041.40, 55,190,122.38 and 21,657,907.32

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Solution

The fourth proportional to 39,993,041.40, 55,190,122.38 and 21,657,907.32 is: 29,887,763.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,993,041.40 : 55,190,122.38 = 21,657,907.32 : x
  2. Step 2: Convert to fraction form
    39,993,041.40/55,190,122.38 = 21,657,907.32/x
  3. Step 3: Cross multiply
    39,993,041.40x = 55,190,122.38 × 21,657,907.32
  4. Step 4: Simplify right side
    39,993,041.40x = 1,195,302,555,485,498
  5. Step 5: Solve for x
    x = 1,195,302,555,485,498/39,993,041.40
  6. Step 6: Final answer
    x = 29,887,763.31

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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.