Finding the Fourth Proportional to 426,092,818.35, 638,574,202.41 and 218,822,856.74
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Solution
The fourth proportional to 426,092,818.35, 638,574,202.41 and 218,822,856.74 is: 327,944,112.63
Step by Step Solution
- Step 1: Write the proportion equation
426,092,818.35 : 638,574,202.41 = 218,822,856.74 : x - Step 2: Convert to fraction form
426,092,818.35/638,574,202.41 = 218,822,856.74/x - Step 3: Cross multiply
426,092,818.35x = 638,574,202.41 × 218,822,856.74 - Step 4: Simplify right side
426,092,818.35x = 139,734,631,211,823,184 - Step 5: Solve for x
x = 139,734,631,211,823,184/426,092,818.35 - Step 6: Final answer
x = 327,944,112.63
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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.