Finding the Fourth Proportional to 121,018,434.80, 181,504,032.60 and 40,239,402.80
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Solution
The fourth proportional to 121,018,434.80, 181,504,032.60 and 40,239,402.80 is: 60,351,250.53
Step by Step Solution
- Step 1: Write the proportion equation
121,018,434.80 : 181,504,032.60 = 40,239,402.80 : x - Step 2: Convert to fraction form
121,018,434.80/181,504,032.60 = 40,239,402.80/x - Step 3: Cross multiply
121,018,434.80x = 181,504,032.60 × 40,239,402.80 - Step 4: Simplify right side
121,018,434.80x = 7,303,613,877,615,730 - Step 5: Solve for x
x = 7,303,613,877,615,730/121,018,434.80 - Step 6: Final answer
x = 60,351,250.53
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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.