Finding the Fourth Proportional to 83,881,315.36, 115,696,586.91 and 55,989,963.10
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Solution
The fourth proportional to 83,881,315.36, 115,696,586.91 and 55,989,963.10 is: 77,226,347.78
Step by Step Solution
- Step 1: Write the proportion equation
83,881,315.36 : 115,696,586.91 = 55,989,963.10 : x - Step 2: Convert to fraction form
83,881,315.36/115,696,586.91 = 55,989,963.10/x - Step 3: Cross multiply
83,881,315.36x = 115,696,586.91 × 55,989,963.10 - Step 4: Simplify right side
83,881,315.36x = 6,477,847,631,886,843 - Step 5: Solve for x
x = 6,477,847,631,886,843/83,881,315.36 - Step 6: Final answer
x = 77,226,347.78
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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.