Finding the Fourth Proportional to 648,463,628.86, 972,755,239.29 and 211,766,601.74
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Solution
The fourth proportional to 648,463,628.86, 972,755,239.29 and 211,766,601.74 is: 317,669,429.99
Step by Step Solution
- Step 1: Write the proportion equation
648,463,628.86 : 972,755,239.29 = 211,766,601.74 : x - Step 2: Convert to fraction form
648,463,628.86/972,755,239.29 = 211,766,601.74/x - Step 3: Cross multiply
648,463,628.86x = 972,755,239.29 × 211,766,601.74 - Step 4: Simplify right side
648,463,628.86x = 205,997,071,350,234,784 - Step 5: Solve for x
x = 205,997,071,350,234,784/648,463,628.86 - Step 6: Final answer
x = 317,669,429.99
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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.