Finding the Fourth Proportional to 378,699,853.87, 522,600,710.72 and 211,438,677.99
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Solution
The fourth proportional to 378,699,853.87, 522,600,710.72 and 211,438,677.99 is: 291,782,535.07
Step by Step Solution
- Step 1: Write the proportion equation
378,699,853.87 : 522,600,710.72 = 211,438,677.99 : x - Step 2: Convert to fraction form
378,699,853.87/522,600,710.72 = 211,438,677.99/x - Step 3: Cross multiply
378,699,853.87x = 522,600,710.72 × 211,438,677.99 - Step 4: Simplify right side
378,699,853.87x = 110,498,003,391,271,232 - Step 5: Solve for x
x = 110,498,003,391,271,232/378,699,853.87 - Step 6: Final answer
x = 291,782,535.07
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.