Finding the Fourth Proportional to 486,871,198.40, 671,671,125.94 and 322,088,271.68
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Solution
The fourth proportional to 486,871,198.40, 671,671,125.94 and 322,088,271.68 is: 444,342,143.88
Step by Step Solution
- Step 1: Write the proportion equation
486,871,198.40 : 671,671,125.94 = 322,088,271.68 : x - Step 2: Convert to fraction form
486,871,198.40/671,671,125.94 = 322,088,271.68/x - Step 3: Cross multiply
486,871,198.40x = 671,671,125.94 × 322,088,271.68 - Step 4: Simplify right side
486,871,198.40x = 216,337,392,091,374,240 - Step 5: Solve for x
x = 216,337,392,091,374,240/486,871,198.40 - Step 6: Final answer
x = 444,342,143.88
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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.