Finding the Fourth Proportional to 138,349,843.95, 207,747,081.78 and 91,735,326.48
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Solution
The fourth proportional to 138,349,843.95, 207,747,081.78 and 91,735,326.48 is: 137,750,400.20
Step by Step Solution
- Step 1: Write the proportion equation
138,349,843.95 : 207,747,081.78 = 91,735,326.48 : x - Step 2: Convert to fraction form
138,349,843.95/207,747,081.78 = 91,735,326.48/x - Step 3: Cross multiply
138,349,843.95x = 207,747,081.78 × 91,735,326.48 - Step 4: Simplify right side
138,349,843.95x = 19,057,746,372,355,560 - Step 5: Solve for x
x = 19,057,746,372,355,560/138,349,843.95 - Step 6: Final answer
x = 137,750,400.20
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.