Finding the Fourth Proportional to 406,672,895.70, 561,214,277.73 and 221,033,855.70
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Solution
The fourth proportional to 406,672,895.70, 561,214,277.73 and 221,033,855.70 is: 305,029,808.95
Step by Step Solution
- Step 1: Write the proportion equation
406,672,895.70 : 561,214,277.73 = 221,033,855.70 : x - Step 2: Convert to fraction form
406,672,895.70/561,214,277.73 = 221,033,855.70/x - Step 3: Cross multiply
406,672,895.70x = 561,214,277.73 × 221,033,855.70 - Step 4: Simplify right side
406,672,895.70x = 124,047,355,680,552,544 - Step 5: Solve for x
x = 124,047,355,680,552,544/406,672,895.70 - Step 6: Final answer
x = 305,029,808.95
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.