Finding the Fourth Proportional to 129,250,117.12, 178,365,740.20 and 70,512,604.24
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Solution
The fourth proportional to 129,250,117.12, 178,365,740.20 and 70,512,604.24 is: 97,307,709.49
Step by Step Solution
- Step 1: Write the proportion equation
129,250,117.12 : 178,365,740.20 = 70,512,604.24 : x - Step 2: Convert to fraction form
129,250,117.12/178,365,740.20 = 70,512,604.24/x - Step 3: Cross multiply
129,250,117.12x = 178,365,740.20 × 70,512,604.24 - Step 4: Simplify right side
129,250,117.12x = 12,577,032,848,697,256 - Step 5: Solve for x
x = 12,577,032,848,697,256/129,250,117.12 - Step 6: Final answer
x = 97,307,709.49
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1.5x scale
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.