Home / 55,383,762.20-83,075,643.30-18,987,270.80

Finding the Fourth Proportional to 55,383,762.20, 83,075,643.30 and 18,987,270.80

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Solution

The fourth proportional to 55,383,762.20, 83,075,643.30 and 18,987,270.80 is: 28,480,906.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,383,762.20 : 83,075,643.30 = 18,987,270.80 : x
  2. Step 2: Convert to fraction form
    55,383,762.20/83,075,643.30 = 18,987,270.80/x
  3. Step 3: Cross multiply
    55,383,762.20x = 83,075,643.30 × 18,987,270.80
  4. Step 4: Simplify right side
    55,383,762.20x = 1,577,379,736,221,305.75
  5. Step 5: Solve for x
    x = 1,577,379,736,221,305.75/55,383,762.20
  6. Step 6: Final answer
    x = 28,480,906.20

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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.