Finding the Fourth Proportional to 143,522,231.70, 215,283,347.55 and 135,963,959.70
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Solution
The fourth proportional to 143,522,231.70, 215,283,347.55 and 135,963,959.70 is: 203,945,939.55
Step by Step Solution
- Step 1: Write the proportion equation
143,522,231.70 : 215,283,347.55 = 135,963,959.70 : x - Step 2: Convert to fraction form
143,522,231.70/215,283,347.55 = 135,963,959.70/x - Step 3: Cross multiply
143,522,231.70x = 215,283,347.55 × 135,963,959.70 - Step 4: Simplify right side
143,522,231.70x = 29,270,776,390,369,292 - Step 5: Solve for x
x = 29,270,776,390,369,292/143,522,231.70 - Step 6: Final answer
x = 203,945,939.55
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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.