Finding the Fourth Proportional to 118,106,211.20, 177,159,316.80 and 106,768,803.20
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Solution
The fourth proportional to 118,106,211.20, 177,159,316.80 and 106,768,803.20 is: 160,153,204.80
Step by Step Solution
- Step 1: Write the proportion equation
118,106,211.20 : 177,159,316.80 = 106,768,803.20 : x - Step 2: Convert to fraction form
118,106,211.20/177,159,316.80 = 106,768,803.20/x - Step 3: Cross multiply
118,106,211.20x = 177,159,316.80 × 106,768,803.20 - Step 4: Simplify right side
118,106,211.20x = 18,915,088,230,465,656 - Step 5: Solve for x
x = 18,915,088,230,465,656/118,106,211.20 - Step 6: Final answer
x = 160,153,204.80
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.