Finding the Fourth Proportional to 39,420,438.54, 59,130,803.34 and 12,126,542.28
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Solution
The fourth proportional to 39,420,438.54, 59,130,803.34 and 12,126,542.28 is: 18,189,858.19
Step by Step Solution
- Step 1: Write the proportion equation
39,420,438.54 : 59,130,803.34 = 12,126,542.28 : x - Step 2: Convert to fraction form
39,420,438.54/59,130,803.34 = 12,126,542.28/x - Step 3: Cross multiply
39,420,438.54x = 59,130,803.34 × 12,126,542.28 - Step 4: Simplify right side
39,420,438.54x = 717,052,186,752,875.25 - Step 5: Solve for x
x = 717,052,186,752,875.25/39,420,438.54 - Step 6: Final answer
x = 18,189,858.19
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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.