Home / 74,378,534.16-111,574,216.44-20,525,846.16

Finding the Fourth Proportional to 74,378,534.16, 111,574,216.44 and 20,525,846.16

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Solution

The fourth proportional to 74,378,534.16, 111,574,216.44 and 20,525,846.16 is: 30,790,539.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,378,534.16 : 111,574,216.44 = 20,525,846.16 : x
  2. Step 2: Convert to fraction form
    74,378,534.16/111,574,216.44 = 20,525,846.16/x
  3. Step 3: Cross multiply
    74,378,534.16x = 111,574,216.44 × 20,525,846.16
  4. Step 4: Simplify right side
    74,378,534.16x = 2,290,155,202,069,983
  5. Step 5: Solve for x
    x = 2,290,155,202,069,983/74,378,534.16
  6. Step 6: Final answer
    x = 30,790,539.61

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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.