Finding the Fourth Proportional to 155,176,356.88, 214,195,263.87 and 92,472,117.68
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Solution
The fourth proportional to 155,176,356.88, 214,195,263.87 and 92,472,117.68 is: 127,642,445.32
Step by Step Solution
- Step 1: Write the proportion equation
155,176,356.88 : 214,195,263.87 = 92,472,117.68 : x - Step 2: Convert to fraction form
155,176,356.88/214,195,263.87 = 92,472,117.68/x - Step 3: Cross multiply
155,176,356.88x = 214,195,263.87 × 92,472,117.68 - Step 4: Simplify right side
155,176,356.88x = 19,807,089,647,967,552 - Step 5: Solve for x
x = 19,807,089,647,967,552/155,176,356.88 - Step 6: Final answer
x = 127,642,445.32
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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.