Finding the Fourth Proportional to 347,712,477.44, 479,643,408 and 217,105,537.28
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Solution
The fourth proportional to 347,712,477.44, 479,643,408 and 217,105,537.28 is: 299,480,883.07
Step by Step Solution
- Step 1: Write the proportion equation
347,712,477.44 : 479,643,408 = 217,105,537.28 : x - Step 2: Convert to fraction form
347,712,477.44/479,643,408 = 217,105,537.28/x - Step 3: Cross multiply
347,712,477.44x = 479,643,408 × 217,105,537.28 - Step 4: Simplify right side
347,712,477.44x = 104,133,239,796,650,256 - Step 5: Solve for x
x = 104,133,239,796,650,256/347,712,477.44 - Step 6: Final answer
x = 299,480,883.07
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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.