Finding the Fourth Proportional to 74,069,870.25, 102,251,865.51 and 49,331,226.09
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Solution
The fourth proportional to 74,069,870.25, 102,251,865.51 and 49,331,226.09 is: 68,100,698.42
Step by Step Solution
- Step 1: Write the proportion equation
74,069,870.25 : 102,251,865.51 = 49,331,226.09 : x - Step 2: Convert to fraction form
74,069,870.25/102,251,865.51 = 49,331,226.09/x - Step 3: Cross multiply
74,069,870.25x = 102,251,865.51 × 49,331,226.09 - Step 4: Simplify right side
74,069,870.25x = 5,044,209,895,598,084 - Step 5: Solve for x
x = 5,044,209,895,598,084/74,069,870.25 - Step 6: Final answer
x = 68,100,698.42
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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.