Finding the Fourth Proportional to 87,310,347.14, 130,965,520.70 and 74,326,579.20
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Solution
The fourth proportional to 87,310,347.14, 130,965,520.70 and 74,326,579.20 is: 111,489,868.79
Step by Step Solution
- Step 1: Write the proportion equation
87,310,347.14 : 130,965,520.70 = 74,326,579.20 : x - Step 2: Convert to fraction form
87,310,347.14/130,965,520.70 = 74,326,579.20/x - Step 3: Cross multiply
87,310,347.14x = 130,965,520.70 × 74,326,579.20 - Step 4: Simplify right side
87,310,347.14x = 9,734,219,146,963,606 - Step 5: Solve for x
x = 9,734,219,146,963,606/87,310,347.14 - Step 6: Final answer
x = 111,489,868.79
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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.