Finding the Fourth Proportional to 289,706,923.80, 434,637,368.10 and 125,874,379.80
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Solution
The fourth proportional to 289,706,923.80, 434,637,368.10 and 125,874,379.80 is: 188,845,017.68
Step by Step Solution
- Step 1: Write the proportion equation
289,706,923.80 : 434,637,368.10 = 125,874,379.80 : x - Step 2: Convert to fraction form
289,706,923.80/434,637,368.10 = 125,874,379.80/x - Step 3: Cross multiply
289,706,923.80x = 434,637,368.10 × 125,874,379.80 - Step 4: Simplify right side
289,706,923.80x = 54,709,709,147,491,808 - Step 5: Solve for x
x = 54,709,709,147,491,808/289,706,923.80 - Step 6: Final answer
x = 188,845,017.68
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.