Finding the Fourth Proportional to 1,685,364,478.20, 2,528,046,717.30 and 458,532,929.70
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Solution
The fourth proportional to 1,685,364,478.20, 2,528,046,717.30 and 458,532,929.70 is: 687,799,394.55
Step by Step Solution
- Step 1: Write the proportion equation
1,685,364,478.20 : 2,528,046,717.30 = 458,532,929.70 : x - Step 2: Convert to fraction form
1,685,364,478.20/2,528,046,717.30 = 458,532,929.70/x - Step 3: Cross multiply
1,685,364,478.20x = 2,528,046,717.30 × 458,532,929.70 - Step 4: Simplify right side
1,685,364,478.20x = 1,159,192,667,702,036,736 - Step 5: Solve for x
x = 1,159,192,667,702,036,736/1,685,364,478.20 - Step 6: Final answer
x = 687,799,394.55
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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.