Finding the Fourth Proportional to 192,996,811.80, 289,495,217.70 and 49,389,643.80
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Solution
The fourth proportional to 192,996,811.80, 289,495,217.70 and 49,389,643.80 is: 74,084,465.70
Step by Step Solution
- Step 1: Write the proportion equation
192,996,811.80 : 289,495,217.70 = 49,389,643.80 : x - Step 2: Convert to fraction form
192,996,811.80/289,495,217.70 = 49,389,643.80/x - Step 3: Cross multiply
192,996,811.80x = 289,495,217.70 × 49,389,643.80 - Step 4: Simplify right side
192,996,811.80x = 14,298,065,684,006,454 - Step 5: Solve for x
x = 14,298,065,684,006,454/192,996,811.80 - Step 6: Final answer
x = 74,084,465.70
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.