Finding the Fourth Proportional to 79,893,947.14, 110,329,792.80 and 75,541,382.98
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Solution
The fourth proportional to 79,893,947.14, 110,329,792.80 and 75,541,382.98 is: 104,319,105.89
Step by Step Solution
- Step 1: Write the proportion equation
79,893,947.14 : 110,329,792.80 = 75,541,382.98 : x - Step 2: Convert to fraction form
79,893,947.14/110,329,792.80 = 75,541,382.98/x - Step 3: Cross multiply
79,893,947.14x = 110,329,792.80 × 75,541,382.98 - Step 4: Simplify right side
79,893,947.14x = 8,334,465,132,008,847 - Step 5: Solve for x
x = 8,334,465,132,008,847/79,893,947.14 - Step 6: Final answer
x = 104,319,105.89
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.