Finding the Fourth Proportional to 121,865,393.52, 181,531,489.14 and 115,264,765.08
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Solution
The fourth proportional to 121,865,393.52, 181,531,489.14 and 115,264,765.08 is: 171,699,149.74
Step by Step Solution
- Step 1: Write the proportion equation
121,865,393.52 : 181,531,489.14 = 115,264,765.08 : x - Step 2: Convert to fraction form
121,865,393.52/181,531,489.14 = 115,264,765.08/x - Step 3: Cross multiply
121,865,393.52x = 181,531,489.14 × 115,264,765.08 - Step 4: Simplify right side
121,865,393.52x = 20,924,184,450,344,668 - Step 5: Solve for x
x = 20,924,184,450,344,668/121,865,393.52 - Step 6: Final answer
x = 171,699,149.74
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Why These Related Problems?
These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.