Finding the Fourth Proportional to 53,438,258.12, 73,744,488.24 and 28,991,447.24
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Solution
The fourth proportional to 53,438,258.12, 73,744,488.24 and 28,991,447.24 is: 40,008,030.11
Step by Step Solution
- Step 1: Write the proportion equation
53,438,258.12 : 73,744,488.24 = 28,991,447.24 : x - Step 2: Convert to fraction form
53,438,258.12/73,744,488.24 = 28,991,447.24/x - Step 3: Cross multiply
53,438,258.12x = 73,744,488.24 × 28,991,447.24 - Step 4: Simplify right side
53,438,258.12x = 2,137,959,439,682,037.75 - Step 5: Solve for x
x = 2,137,959,439,682,037.75/53,438,258.12 - Step 6: Final answer
x = 40,008,030.11
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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.