Finding the Fourth Proportional to 7,817,921.87, 11,728,355.98 and 2,961,682.91
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Solution
The fourth proportional to 7,817,921.87, 11,728,355.98 and 2,961,682.91 is: 4,443,082.45
Step by Step Solution
- Step 1: Write the proportion equation
7,817,921.87 : 11,728,355.98 = 2,961,682.91 : x - Step 2: Convert to fraction form
7,817,921.87/11,728,355.98 = 2,961,682.91/x - Step 3: Cross multiply
7,817,921.87x = 11,728,355.98 × 2,961,682.91 - Step 4: Simplify right side
7,817,921.87x = 34,735,671,468,362.30 - Step 5: Solve for x
x = 34,735,671,468,362.30/7,817,921.87 - Step 6: Final answer
x = 4,443,082.45
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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.