Finding the Fourth Proportional to 196,713,718.95, 271,366,931.20 and 117,272,803.75
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Solution
The fourth proportional to 196,713,718.95, 271,366,931.20 and 117,272,803.75 is: 161,778,044.95
Step by Step Solution
- Step 1: Write the proportion equation
196,713,718.95 : 271,366,931.20 = 117,272,803.75 : x - Step 2: Convert to fraction form
196,713,718.95/271,366,931.20 = 117,272,803.75/x - Step 3: Cross multiply
196,713,718.95x = 271,366,931.20 × 117,272,803.75 - Step 4: Simplify right side
196,713,718.95x = 31,823,960,866,857,352 - Step 5: Solve for x
x = 31,823,960,866,857,352/196,713,718.95 - Step 6: Final answer
x = 161,778,044.95
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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.