Finding the Fourth Proportional to 442,868,130.10, 664,302,195.15 and 440,317,213.30
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Solution
The fourth proportional to 442,868,130.10, 664,302,195.15 and 440,317,213.30 is: 660,475,819.95
Step by Step Solution
- Step 1: Write the proportion equation
442,868,130.10 : 664,302,195.15 = 440,317,213.30 : x - Step 2: Convert to fraction form
442,868,130.10/664,302,195.15 = 440,317,213.30/x - Step 3: Cross multiply
442,868,130.10x = 664,302,195.15 × 440,317,213.30 - Step 4: Simplify right side
442,868,130.10x = 292,503,691,357,520,768 - Step 5: Solve for x
x = 292,503,691,357,520,768/442,868,130.10 - Step 6: Final answer
x = 660,475,819.95
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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.