Home / 52,539,804.35-78,741,338.85-21,379,139.60

Finding the Fourth Proportional to 52,539,804.35, 78,741,338.85 and 21,379,139.60

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Solution

The fourth proportional to 52,539,804.35, 78,741,338.85 and 21,379,139.60 is: 32,040,889.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,539,804.35 : 78,741,338.85 = 21,379,139.60 : x
  2. Step 2: Convert to fraction form
    52,539,804.35/78,741,338.85 = 21,379,139.60/x
  3. Step 3: Cross multiply
    52,539,804.35x = 78,741,338.85 × 21,379,139.60
  4. Step 4: Simplify right side
    52,539,804.35x = 1,683,422,075,171,346.50
  5. Step 5: Solve for x
    x = 1,683,422,075,171,346.50/52,539,804.35
  6. Step 6: Final answer
    x = 32,040,889.69

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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.