Finding the Fourth Proportional to 3,778,337.49, 5,214,107.15 and 2,146,746.99
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Solution
The fourth proportional to 3,778,337.49, 5,214,107.15 and 2,146,746.99 is: 2,962,511.65
Step by Step Solution
- Step 1: Write the proportion equation
3,778,337.49 : 5,214,107.15 = 2,146,746.99 : x - Step 2: Convert to fraction form
3,778,337.49/5,214,107.15 = 2,146,746.99/x - Step 3: Cross multiply
3,778,337.49x = 5,214,107.15 × 2,146,746.99 - Step 4: Simplify right side
3,778,337.49x = 11,193,368,829,799.98 - Step 5: Solve for x
x = 11,193,368,829,799.98/3,778,337.49 - Step 6: Final answer
x = 2,962,511.65
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1.5x scale
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.