Finding the Fourth Proportional to 645,408,097.80, 968,112,146.70 and 160,733,905.80
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Solution
The fourth proportional to 645,408,097.80, 968,112,146.70 and 160,733,905.80 is: 241,100,858.70
Step by Step Solution
- Step 1: Write the proportion equation
645,408,097.80 : 968,112,146.70 = 160,733,905.80 : x - Step 2: Convert to fraction form
645,408,097.80/968,112,146.70 = 160,733,905.80/x - Step 3: Cross multiply
645,408,097.80x = 968,112,146.70 × 160,733,905.80 - Step 4: Simplify right side
645,408,097.80x = 155,608,446,591,513,600 - Step 5: Solve for x
x = 155,608,446,591,513,600/645,408,097.80 - Step 6: Final answer
x = 241,100,858.70
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Double scale
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Similar ratio
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1.5x scale
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.