Finding the Fourth Proportional to 660,578,043.81, 990,844,624.34 and 169,296,137.49
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Solution
The fourth proportional to 660,578,043.81, 990,844,624.34 and 169,296,137.49 is: 253,938,454.85
Step by Step Solution
- Step 1: Write the proportion equation
660,578,043.81 : 990,844,624.34 = 169,296,137.49 : x - Step 2: Convert to fraction form
660,578,043.81/990,844,624.34 = 169,296,137.49/x - Step 3: Cross multiply
660,578,043.81x = 990,844,624.34 × 169,296,137.49 - Step 4: Simplify right side
660,578,043.81x = 167,746,167,753,492,064 - Step 5: Solve for x
x = 167,746,167,753,492,064/660,578,043.81 - Step 6: Final answer
x = 253,938,454.85
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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.