Finding the Fourth Proportional to 92,552,123.20, 138,828,184.80 and 68,664,251.20
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Solution
The fourth proportional to 92,552,123.20, 138,828,184.80 and 68,664,251.20 is: 102,996,376.80
Step by Step Solution
- Step 1: Write the proportion equation
92,552,123.20 : 138,828,184.80 = 68,664,251.20 : x - Step 2: Convert to fraction form
92,552,123.20/138,828,184.80 = 68,664,251.20/x - Step 3: Cross multiply
92,552,123.20x = 138,828,184.80 × 68,664,251.20 - Step 4: Simplify right side
92,552,123.20x = 9,532,533,354,747,222 - Step 5: Solve for x
x = 9,532,533,354,747,222/92,552,123.20 - Step 6: Final answer
x = 102,996,376.80
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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.