Finding the Fourth Proportional to 139,163,138.71, 192,039,870.15 and 77,287,463.08
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Solution
The fourth proportional to 139,163,138.71, 192,039,870.15 and 77,287,463.08 is: 106,653,777.08
Step by Step Solution
- Step 1: Write the proportion equation
139,163,138.71 : 192,039,870.15 = 77,287,463.08 : x - Step 2: Convert to fraction form
139,163,138.71/192,039,870.15 = 77,287,463.08/x - Step 3: Cross multiply
139,163,138.71x = 192,039,870.15 × 77,287,463.08 - Step 4: Simplify right side
139,163,138.71x = 14,842,274,374,106,120 - Step 5: Solve for x
x = 14,842,274,374,106,120/139,163,138.71 - Step 6: Final answer
x = 106,653,777.08
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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.