Finding the Fourth Proportional to 616,220,645.20, 850,471,690.80 and 381,346,948.96
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Solution
The fourth proportional to 616,220,645.20, 850,471,690.80 and 381,346,948.96 is: 526,312,753.38
Step by Step Solution
- Step 1: Write the proportion equation
616,220,645.20 : 850,471,690.80 = 381,346,948.96 : x - Step 2: Convert to fraction form
616,220,645.20/850,471,690.80 = 381,346,948.96/x - Step 3: Cross multiply
616,220,645.20x = 850,471,690.80 × 381,346,948.96 - Step 4: Simplify right side
616,220,645.20x = 324,324,784,463,432,448 - Step 5: Solve for x
x = 324,324,784,463,432,448/616,220,645.20 - Step 6: Final answer
x = 526,312,753.38
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.