Finding the Fourth Proportional to 115,941,740.45, 159,998,658.68 and 63,730,220.99
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Solution
The fourth proportional to 115,941,740.45, 159,998,658.68 and 63,730,220.99 is: 87,947,186.54
Step by Step Solution
- Step 1: Write the proportion equation
115,941,740.45 : 159,998,658.68 = 63,730,220.99 : x - Step 2: Convert to fraction form
115,941,740.45/159,998,658.68 = 63,730,220.99/x - Step 3: Cross multiply
115,941,740.45x = 159,998,658.68 × 63,730,220.99 - Step 4: Simplify right side
115,941,740.45x = 10,196,749,875,139,314 - Step 5: Solve for x
x = 10,196,749,875,139,314/115,941,740.45 - Step 6: Final answer
x = 87,947,186.54
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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.