Finding the Fourth Proportional to 13,225,937.07, 18,250,785.51 and 7,423,597.80
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Solution
The fourth proportional to 13,225,937.07, 18,250,785.51 and 7,423,597.80 is: 10,243,999.38
Step by Step Solution
- Step 1: Write the proportion equation
13,225,937.07 : 18,250,785.51 = 7,423,597.80 : x - Step 2: Convert to fraction form
13,225,937.07/18,250,785.51 = 7,423,597.80/x - Step 3: Cross multiply
13,225,937.07x = 18,250,785.51 × 7,423,597.80 - Step 4: Simplify right side
13,225,937.07x = 135,486,491,160,307.89 - Step 5: Solve for x
x = 135,486,491,160,307.89/13,225,937.07 - Step 6: Final answer
x = 10,243,999.38
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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.