Finding the Fourth Proportional to 39,398,507.19, 59,133,623.12 and 20,969,923.82
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Solution
The fourth proportional to 39,398,507.19, 59,133,623.12 and 20,969,923.82 is: 31,473,973.51
Step by Step Solution
- Step 1: Write the proportion equation
39,398,507.19 : 59,133,623.12 = 20,969,923.82 : x - Step 2: Convert to fraction form
39,398,507.19/59,133,623.12 = 20,969,923.82/x - Step 3: Cross multiply
39,398,507.19x = 59,133,623.12 × 20,969,923.82 - Step 4: Simplify right side
39,398,507.19x = 1,240,027,571,705,110.25 - Step 5: Solve for x
x = 1,240,027,571,705,110.25/39,398,507.19 - Step 6: Final answer
x = 31,473,973.51
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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.