Finding the Fourth Proportional to 35,442,652.80, 53,163,979.20 and 19,318,339.20
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Solution
The fourth proportional to 35,442,652.80, 53,163,979.20 and 19,318,339.20 is: 28,977,508.80
Step by Step Solution
- Step 1: Write the proportion equation
35,442,652.80 : 53,163,979.20 = 19,318,339.20 : x - Step 2: Convert to fraction form
35,442,652.80/53,163,979.20 = 19,318,339.20/x - Step 3: Cross multiply
35,442,652.80x = 53,163,979.20 × 19,318,339.20 - Step 4: Simplify right side
35,442,652.80x = 1,027,039,783,407,344.62 - Step 5: Solve for x
x = 1,027,039,783,407,344.62/35,442,652.80 - Step 6: Final answer
x = 28,977,508.80
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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.