Finding the Fourth Proportional to 247,179,934.60, 370,769,901.90 and 138,340,817.80
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Solution
The fourth proportional to 247,179,934.60, 370,769,901.90 and 138,340,817.80 is: 207,511,226.70
Step by Step Solution
- Step 1: Write the proportion equation
247,179,934.60 : 370,769,901.90 = 138,340,817.80 : x - Step 2: Convert to fraction form
247,179,934.60/370,769,901.90 = 138,340,817.80/x - Step 3: Cross multiply
247,179,934.60x = 370,769,901.90 × 138,340,817.80 - Step 4: Simplify right side
247,179,934.60x = 51,292,611,444,471,776 - Step 5: Solve for x
x = 51,292,611,444,471,776/247,179,934.60 - Step 6: Final answer
x = 207,511,226.70
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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.