Finding the Fourth Proportional to 368,854,088.44, 509,019,138.06 and 212,218,053.84
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Solution
The fourth proportional to 368,854,088.44, 509,019,138.06 and 212,218,053.84 is: 292,861,199.68
Step by Step Solution
- Step 1: Write the proportion equation
368,854,088.44 : 509,019,138.06 = 212,218,053.84 : x - Step 2: Convert to fraction form
368,854,088.44/509,019,138.06 = 212,218,053.84/x - Step 3: Cross multiply
368,854,088.44x = 509,019,138.06 × 212,218,053.84 - Step 4: Simplify right side
368,854,088.44x = 108,023,050,846,407,472 - Step 5: Solve for x
x = 108,023,050,846,407,472/368,854,088.44 - Step 6: Final answer
x = 292,861,199.68
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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.