Finding the Fourth Proportional to 221,423,867.80, 332,135,801.70 and 57,661,307.80
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Solution
The fourth proportional to 221,423,867.80, 332,135,801.70 and 57,661,307.80 is: 86,491,961.70
Step by Step Solution
- Step 1: Write the proportion equation
221,423,867.80 : 332,135,801.70 = 57,661,307.80 : x - Step 2: Convert to fraction form
221,423,867.80/332,135,801.70 = 57,661,307.80/x - Step 3: Cross multiply
221,423,867.80x = 332,135,801.70 × 57,661,307.80 - Step 4: Simplify right side
221,423,867.80x = 19,151,384,693,223,460 - Step 5: Solve for x
x = 19,151,384,693,223,460/221,423,867.80 - Step 6: Final answer
x = 86,491,961.70
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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.