Finding the Fourth Proportional to 143,112,207.20, 214,668,310.80 and 97,762,575.20
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Solution
The fourth proportional to 143,112,207.20, 214,668,310.80 and 97,762,575.20 is: 146,643,862.80
Step by Step Solution
- Step 1: Write the proportion equation
143,112,207.20 : 214,668,310.80 = 97,762,575.20 : x - Step 2: Convert to fraction form
143,112,207.20/214,668,310.80 = 97,762,575.20/x - Step 3: Cross multiply
143,112,207.20x = 214,668,310.80 × 97,762,575.20 - Step 4: Simplify right side
143,112,207.20x = 20,986,526,877,641,972 - Step 5: Solve for x
x = 20,986,526,877,641,972/143,112,207.20 - Step 6: Final answer
x = 146,643,862.80
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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.