Finding the Fourth Proportional to 5,140,830.80, 7,709,863.80 and 2,148,395.60
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Solution
The fourth proportional to 5,140,830.80, 7,709,863.80 and 2,148,395.60 is: 3,222,015.68
Step by Step Solution
- Step 1: Write the proportion equation
5,140,830.80 : 7,709,863.80 = 2,148,395.60 : x - Step 2: Convert to fraction form
5,140,830.80/7,709,863.80 = 2,148,395.60/x - Step 3: Cross multiply
5,140,830.80x = 7,709,863.80 × 2,148,395.60 - Step 4: Simplify right side
5,140,830.80x = 16,563,837,464,519.28 - Step 5: Solve for x
x = 16,563,837,464,519.28/5,140,830.80 - Step 6: Final answer
x = 3,222,015.68
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.