Finding the Fourth Proportional to 80,851,501.20, 121,277,251.80 and 61,719,625.20
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Solution
The fourth proportional to 80,851,501.20, 121,277,251.80 and 61,719,625.20 is: 92,579,437.80
Step by Step Solution
- Step 1: Write the proportion equation
80,851,501.20 : 121,277,251.80 = 61,719,625.20 : x - Step 2: Convert to fraction form
80,851,501.20/121,277,251.80 = 61,719,625.20/x - Step 3: Cross multiply
80,851,501.20x = 121,277,251.80 × 61,719,625.20 - Step 4: Simplify right side
80,851,501.20x = 7,485,186,526,382,026 - Step 5: Solve for x
x = 7,485,186,526,382,026/80,851,501.20 - Step 6: Final answer
x = 92,579,437.80
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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.