Finding the Fourth Proportional to 478,310,429.80, 717,465,644.70 and 114,804,785.80
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Solution
The fourth proportional to 478,310,429.80, 717,465,644.70 and 114,804,785.80 is: 172,207,178.70
Step by Step Solution
- Step 1: Write the proportion equation
478,310,429.80 : 717,465,644.70 = 114,804,785.80 : x - Step 2: Convert to fraction form
478,310,429.80/717,465,644.70 = 114,804,785.80/x - Step 3: Cross multiply
478,310,429.80x = 717,465,644.70 × 114,804,785.80 - Step 4: Simplify right side
478,310,429.80x = 82,368,489,658,642,416 - Step 5: Solve for x
x = 82,368,489,658,642,416/478,310,429.80 - Step 6: Final answer
x = 172,207,178.70
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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.