Finding the Fourth Proportional to 220,786,787.09, 304,687,781.22 and 121,671,090.74
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Solution
The fourth proportional to 220,786,787.09, 304,687,781.22 and 121,671,090.74 is: 167,907,215.66
Step by Step Solution
- Step 1: Write the proportion equation
220,786,787.09 : 304,687,781.22 = 121,671,090.74 : x - Step 2: Convert to fraction form
220,786,787.09/304,687,781.22 = 121,671,090.74/x - Step 3: Cross multiply
220,786,787.09x = 304,687,781.22 × 121,671,090.74 - Step 4: Simplify right side
220,786,787.09x = 37,071,694,674,664,456 - Step 5: Solve for x
x = 37,071,694,674,664,456/220,786,787.09 - Step 6: Final answer
x = 167,907,215.66
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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.