Finding the Fourth Proportional to 149,335,906.56, 205,926,412.08 and 117,921,838.56
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Solution
The fourth proportional to 149,335,906.56, 205,926,412.08 and 117,921,838.56 is: 162,608,053.75
Step by Step Solution
- Step 1: Write the proportion equation
149,335,906.56 : 205,926,412.08 = 117,921,838.56 : x - Step 2: Convert to fraction form
149,335,906.56/205,926,412.08 = 117,921,838.56/x - Step 3: Cross multiply
149,335,906.56x = 205,926,412.08 × 117,921,838.56 - Step 4: Simplify right side
149,335,906.56x = 24,283,221,120,537,796 - Step 5: Solve for x
x = 24,283,221,120,537,796/149,335,906.56 - Step 6: Final answer
x = 162,608,053.75
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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.