Finding the Fourth Proportional to 7,208,396.48, 9,943,602.72 and 4,630,458.08
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Solution
The fourth proportional to 7,208,396.48, 9,943,602.72 and 4,630,458.08 is: 6,387,472.68
Step by Step Solution
- Step 1: Write the proportion equation
7,208,396.48 : 9,943,602.72 = 4,630,458.08 : x - Step 2: Convert to fraction form
7,208,396.48/9,943,602.72 = 4,630,458.08/x - Step 3: Cross multiply
7,208,396.48x = 9,943,602.72 × 4,630,458.08 - Step 4: Simplify right side
7,208,396.48x = 46,043,435,559,133.98 - Step 5: Solve for x
x = 46,043,435,559,133.98/7,208,396.48 - Step 6: Final answer
x = 6,387,472.68
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.