Finding the Fourth Proportional to 179,139,982.08, 247,205,223.57 and 99,759,138.13
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Solution
The fourth proportional to 179,139,982.08, 247,205,223.57 and 99,759,138.13 is: 137,663,182.49
Step by Step Solution
- Step 1: Write the proportion equation
179,139,982.08 : 247,205,223.57 = 99,759,138.13 : x - Step 2: Convert to fraction form
179,139,982.08/247,205,223.57 = 99,759,138.13/x - Step 3: Cross multiply
179,139,982.08x = 247,205,223.57 × 99,759,138.13 - Step 4: Simplify right side
179,139,982.08x = 24,660,980,044,419,292 - Step 5: Solve for x
x = 24,660,980,044,419,292/179,139,982.08 - Step 6: Final answer
x = 137,663,182.49
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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.