Finding the Fourth Proportional to 102,545,358.12, 141,512,583.60 and 55,502,423.46
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Solution
The fourth proportional to 102,545,358.12, 141,512,583.60 and 55,502,423.46 is: 76,593,338.63
Step by Step Solution
- Step 1: Write the proportion equation
102,545,358.12 : 141,512,583.60 = 55,502,423.46 : x - Step 2: Convert to fraction form
102,545,358.12/141,512,583.60 = 55,502,423.46/x - Step 3: Cross multiply
102,545,358.12x = 141,512,583.60 × 55,502,423.46 - Step 4: Simplify right side
102,545,358.12x = 7,854,291,339,885,851 - Step 5: Solve for x
x = 7,854,291,339,885,851/102,545,358.12 - Step 6: Final answer
x = 76,593,338.63
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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.