Finding the Fourth Proportional to 256,746,738.19, 385,105,931.80 and 187,730,266.99
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Solution
The fourth proportional to 256,746,738.19, 385,105,931.80 and 187,730,266.99 is: 281,585,035.53
Step by Step Solution
- Step 1: Write the proportion equation
256,746,738.19 : 385,105,931.80 = 187,730,266.99 : x - Step 2: Convert to fraction form
256,746,738.19/385,105,931.80 = 187,730,266.99/x - Step 3: Cross multiply
256,746,738.19x = 385,105,931.80 × 187,730,266.99 - Step 4: Simplify right side
256,746,738.19x = 72,296,039,396,246,736 - Step 5: Solve for x
x = 72,296,039,396,246,736/256,746,738.19 - Step 6: Final answer
x = 281,585,035.53
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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.