Finding the Fourth Proportional to 139,163,140.77, 192,039,872.99 and 77,287,465.14
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Solution
The fourth proportional to 139,163,140.77, 192,039,872.99 and 77,287,465.14 is: 106,653,779.92
Step by Step Solution
- Step 1: Write the proportion equation
139,163,140.77 : 192,039,872.99 = 77,287,465.14 : x - Step 2: Convert to fraction form
139,163,140.77/192,039,872.99 = 77,287,465.14/x - Step 3: Cross multiply
139,163,140.77x = 192,039,872.99 × 77,287,465.14 - Step 4: Simplify right side
139,163,140.77x = 14,842,274,989,204,654 - Step 5: Solve for x
x = 14,842,274,989,204,654/139,163,140.77 - Step 6: Final answer
x = 106,653,779.92
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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.