Finding the Fourth Proportional to 143,112,201.70, 214,668,302.55 and 97,762,569.70
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Solution
The fourth proportional to 143,112,201.70, 214,668,302.55 and 97,762,569.70 is: 146,643,854.55
Step by Step Solution
- Step 1: Write the proportion equation
143,112,201.70 : 214,668,302.55 = 97,762,569.70 : x - Step 2: Convert to fraction form
143,112,201.70/214,668,302.55 = 97,762,569.70/x - Step 3: Cross multiply
143,112,201.70x = 214,668,302.55 × 97,762,569.70 - Step 4: Simplify right side
143,112,201.70x = 20,986,524,890,425,064 - Step 5: Solve for x
x = 20,986,524,890,425,064/143,112,201.70 - Step 6: Final answer
x = 146,643,854.55
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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.