Finding the Fourth Proportional to 7,123,267.71, 9,830,288.99 and 4,371,474.96
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Solution
The fourth proportional to 7,123,267.71, 9,830,288.99 and 4,371,474.96 is: 6,032,745.63
Step by Step Solution
- Step 1: Write the proportion equation
7,123,267.71 : 9,830,288.99 = 4,371,474.96 : x - Step 2: Convert to fraction form
7,123,267.71/9,830,288.99 = 4,371,474.96/x - Step 3: Cross multiply
7,123,267.71x = 9,830,288.99 × 4,371,474.96 - Step 4: Simplify right side
7,123,267.71x = 42,972,862,180,277.38 - Step 5: Solve for x
x = 42,972,862,180,277.38/7,123,267.71 - Step 6: Final answer
x = 6,032,745.63
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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.