Finding the Fourth Proportional to 165,786,462.24, 228,788,979.12 and 91,449,281.76
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Solution
The fourth proportional to 165,786,462.24, 228,788,979.12 and 91,449,281.76 is: 126,202,028.40
Step by Step Solution
- Step 1: Write the proportion equation
165,786,462.24 : 228,788,979.12 = 91,449,281.76 : x - Step 2: Convert to fraction form
165,786,462.24/228,788,979.12 = 91,449,281.76/x - Step 3: Cross multiply
165,786,462.24x = 228,788,979.12 × 91,449,281.76 - Step 4: Simplify right side
165,786,462.24x = 20,922,587,815,127,640 - Step 5: Solve for x
x = 20,922,587,815,127,640/165,786,462.24 - Step 6: Final answer
x = 126,202,028.40
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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.