Finding the Fourth Proportional to 313,009,637.29, 431,936,437.76 and 173,771,435.95
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Solution
The fourth proportional to 313,009,637.29, 431,936,437.76 and 173,771,435.95 is: 239,795,220.61
Step by Step Solution
- Step 1: Write the proportion equation
313,009,637.29 : 431,936,437.76 = 173,771,435.95 : x - Step 2: Convert to fraction form
313,009,637.29/431,936,437.76 = 173,771,435.95/x - Step 3: Cross multiply
313,009,637.29x = 431,936,437.76 × 173,771,435.95 - Step 4: Simplify right side
313,009,637.29x = 75,058,215,027,814,144 - Step 5: Solve for x
x = 75,058,215,027,814,144/313,009,637.29 - Step 6: Final answer
x = 239,795,220.61
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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.