Finding the Fourth Proportional to 71,668,599.18, 106,979,690.87 and 61,498,811.35
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Solution
The fourth proportional to 71,668,599.18, 106,979,690.87 and 61,498,811.35 is: 91,799,252.43
Step by Step Solution
- Step 1: Write the proportion equation
71,668,599.18 : 106,979,690.87 = 61,498,811.35 : x - Step 2: Convert to fraction form
71,668,599.18/106,979,690.87 = 61,498,811.35/x - Step 3: Cross multiply
71,668,599.18x = 106,979,690.87 × 61,498,811.35 - Step 4: Simplify right side
71,668,599.18x = 6,579,123,827,095,448 - Step 5: Solve for x
x = 6,579,123,827,095,448/71,668,599.18 - Step 6: Final answer
x = 91,799,252.43
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Why These Related Problems?
These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.