Finding the Fourth Proportional to 83,477,888.28, 125,217,638.84 and 31,648,552.54
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Solution
The fourth proportional to 83,477,888.28, 125,217,638.84 and 31,648,552.54 is: 47,473,134.54
Step by Step Solution
- Step 1: Write the proportion equation
83,477,888.28 : 125,217,638.84 = 31,648,552.54 : x - Step 2: Convert to fraction form
83,477,888.28/125,217,638.84 = 31,648,552.54/x - Step 3: Cross multiply
83,477,888.28x = 125,217,638.84 × 31,648,552.54 - Step 4: Simplify right side
83,477,888.28x = 3,962,957,021,528,562 - Step 5: Solve for x
x = 3,962,957,021,528,562/83,477,888.28 - Step 6: Final answer
x = 47,473,134.54
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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.