Finding the Fourth Proportional to 485,244,501.30, 727,866,751.95 and 301,578,491.70
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Solution
The fourth proportional to 485,244,501.30, 727,866,751.95 and 301,578,491.70 is: 452,367,737.55
Step by Step Solution
- Step 1: Write the proportion equation
485,244,501.30 : 727,866,751.95 = 301,578,491.70 : x - Step 2: Convert to fraction form
485,244,501.30/727,866,751.95 = 301,578,491.70/x - Step 3: Cross multiply
485,244,501.30x = 727,866,751.95 × 301,578,491.70 - Step 4: Simplify right side
485,244,501.30x = 219,508,957,211,659,040 - Step 5: Solve for x
x = 219,508,957,211,659,040/485,244,501.30 - Step 6: Final answer
x = 452,367,737.55
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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.