Finding the Fourth Proportional to 687,068,719.80, 1,030,250,049.30 and 202,331,542.20
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Solution
The fourth proportional to 687,068,719.80, 1,030,250,049.30 and 202,331,542.20 is: 303,393,351.09
Step by Step Solution
- Step 1: Write the proportion equation
687,068,719.80 : 1,030,250,049.30 = 202,331,542.20 : x - Step 2: Convert to fraction form
687,068,719.80/1,030,250,049.30 = 202,331,542.20/x - Step 3: Cross multiply
687,068,719.80x = 1,030,250,049.30 × 202,331,542.20 - Step 4: Simplify right side
687,068,719.80x = 208,452,081,326,495,008 - Step 5: Solve for x
x = 208,452,081,326,495,008/687,068,719.80 - Step 6: Final answer
x = 303,393,351.09
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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.