Finding the Fourth Proportional to 235,002,153.48, 324,310,271.70 and 129,153,648.12
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Solution
The fourth proportional to 235,002,153.48, 324,310,271.70 and 129,153,648.12 is: 178,236,046.32
Step by Step Solution
- Step 1: Write the proportion equation
235,002,153.48 : 324,310,271.70 = 129,153,648.12 : x - Step 2: Convert to fraction form
235,002,153.48/324,310,271.70 = 129,153,648.12/x - Step 3: Cross multiply
235,002,153.48x = 324,310,271.70 × 129,153,648.12 - Step 4: Simplify right side
235,002,153.48x = 41,885,854,712,843,392 - Step 5: Solve for x
x = 41,885,854,712,843,392/235,002,153.48 - Step 6: Final answer
x = 178,236,046.32
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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.