Finding the Fourth Proportional to 77,153,354.60, 115,734,464.46 and 27,979,913.48
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Solution
The fourth proportional to 77,153,354.60, 115,734,464.46 and 27,979,913.48 is: 41,971,477.70
Step by Step Solution
- Step 1: Write the proportion equation
77,153,354.60 : 115,734,464.46 = 27,979,913.48 : x - Step 2: Convert to fraction form
77,153,354.60/115,734,464.46 = 27,979,913.48/x - Step 3: Cross multiply
77,153,354.60x = 115,734,464.46 × 27,979,913.48 - Step 4: Simplify right side
77,153,354.60x = 3,238,240,302,244,935 - Step 5: Solve for x
x = 3,238,240,302,244,935/77,153,354.60 - Step 6: Final answer
x = 41,971,477.70
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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.