Finding the Fourth Proportional to 308,687,212.66, 425,399,641.58 and 303,013,415.68
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Solution
The fourth proportional to 308,687,212.66, 425,399,641.58 and 303,013,415.68 is: 417,580,622.51
Step by Step Solution
- Step 1: Write the proportion equation
308,687,212.66 : 425,399,641.58 = 303,013,415.68 : x - Step 2: Convert to fraction form
308,687,212.66/425,399,641.58 = 303,013,415.68/x - Step 3: Cross multiply
308,687,212.66x = 425,399,641.58 × 303,013,415.68 - Step 4: Simplify right side
308,687,212.66x = 128,901,798,424,203,552 - Step 5: Solve for x
x = 128,901,798,424,203,552/308,687,212.66 - Step 6: Final answer
x = 417,580,622.51
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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.