Finding the Fourth Proportional to 197,424,891.71, 272,730,135.97 and 157,680,240.95
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Solution
The fourth proportional to 197,424,891.71, 272,730,135.97 and 157,680,240.95 is: 217,825,387.58
Step by Step Solution
- Step 1: Write the proportion equation
197,424,891.71 : 272,730,135.97 = 157,680,240.95 : x - Step 2: Convert to fraction form
197,424,891.71/272,730,135.97 = 157,680,240.95/x - Step 3: Cross multiply
197,424,891.71x = 272,730,135.97 × 157,680,240.95 - Step 4: Simplify right side
197,424,891.71x = 43,004,153,552,712,216 - Step 5: Solve for x
x = 43,004,153,552,712,216/197,424,891.71 - Step 6: Final answer
x = 217,825,387.58
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.