Finding the Fourth Proportional to 6,420,430.17, 9,630,663.48 and 1,628,122.68
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Solution
The fourth proportional to 6,420,430.17, 9,630,663.48 and 1,628,122.68 is: 2,442,188.64
Step by Step Solution
- Step 1: Write the proportion equation
6,420,430.17 : 9,630,663.48 = 1,628,122.68 : x - Step 2: Convert to fraction form
6,420,430.17/9,630,663.48 = 1,628,122.68/x - Step 3: Cross multiply
6,420,430.17x = 9,630,663.48 × 1,628,122.68 - Step 4: Simplify right side
6,420,430.17x = 15,679,901,635,235.73 - Step 5: Solve for x
x = 15,679,901,635,235.73/6,420,430.17 - Step 6: Final answer
x = 2,442,188.64
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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.