Finding the Fourth Proportional to 738,178,701.30, 1,107,268,051.95 and 392,954,627.70
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Solution
The fourth proportional to 738,178,701.30, 1,107,268,051.95 and 392,954,627.70 is: 589,431,941.55
Step by Step Solution
- Step 1: Write the proportion equation
738,178,701.30 : 1,107,268,051.95 = 392,954,627.70 : x - Step 2: Convert to fraction form
738,178,701.30/1,107,268,051.95 = 392,954,627.70/x - Step 3: Cross multiply
738,178,701.30x = 1,107,268,051.95 × 392,954,627.70 - Step 4: Simplify right side
738,178,701.30x = 435,106,105,118,116,544 - Step 5: Solve for x
x = 435,106,105,118,116,544/738,178,701.30 - Step 6: Final answer
x = 589,431,941.55
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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.