Finding the Fourth Proportional to 289,706,682.80, 434,637,006.60 and 125,874,138.80
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Solution
The fourth proportional to 289,706,682.80, 434,637,006.60 and 125,874,138.80 is: 188,844,656.15
Step by Step Solution
- Step 1: Write the proportion equation
289,706,682.80 : 434,637,006.60 = 125,874,138.80 : x - Step 2: Convert to fraction form
289,706,682.80/434,637,006.60 = 125,874,138.80/x - Step 3: Cross multiply
289,706,682.80x = 434,637,006.60 × 125,874,138.80 - Step 4: Simplify right side
289,706,682.80x = 54,709,558,896,384,920 - Step 5: Solve for x
x = 54,709,558,896,384,920/289,706,682.80 - Step 6: Final answer
x = 188,844,656.15
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.