Finding the Fourth Proportional to 1,093,068,203.60, 1,639,602,305.40 and 987,630,309.20
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Solution
The fourth proportional to 1,093,068,203.60, 1,639,602,305.40 and 987,630,309.20 is: 1,481,445,463.80
Step by Step Solution
- Step 1: Write the proportion equation
1,093,068,203.60 : 1,639,602,305.40 = 987,630,309.20 : x - Step 2: Convert to fraction form
1,093,068,203.60/1,639,602,305.40 = 987,630,309.20/x - Step 3: Cross multiply
1,093,068,203.60x = 1,639,602,305.40 × 987,630,309.20 - Step 4: Simplify right side
1,093,068,203.60x = 1,619,320,931,847,235,072 - Step 5: Solve for x
x = 1,619,320,931,847,235,072/1,093,068,203.60 - Step 6: Final answer
x = 1,481,445,463.80
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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.