Finding the Fourth Proportional to 117,835,128.18, 162,632,264.99 and 68,306,483.66
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Solution
The fourth proportional to 117,835,128.18, 162,632,264.99 and 68,306,483.66 is: 94,274,418.18
Step by Step Solution
- Step 1: Write the proportion equation
117,835,128.18 : 162,632,264.99 = 68,306,483.66 : x - Step 2: Convert to fraction form
117,835,128.18/162,632,264.99 = 68,306,483.66/x - Step 3: Cross multiply
117,835,128.18x = 162,632,264.99 × 68,306,483.66 - Step 4: Simplify right side
117,835,128.18x = 11,108,838,149,973,532 - Step 5: Solve for x
x = 11,108,838,149,973,532/117,835,128.18 - Step 6: Final answer
x = 94,274,418.18
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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.