Finding the Fourth Proportional to 412,992,027.30, 619,488,040.95 and 289,372,289.70
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Solution
The fourth proportional to 412,992,027.30, 619,488,040.95 and 289,372,289.70 is: 434,058,434.55
Step by Step Solution
- Step 1: Write the proportion equation
412,992,027.30 : 619,488,040.95 = 289,372,289.70 : x - Step 2: Convert to fraction form
412,992,027.30/619,488,040.95 = 289,372,289.70/x - Step 3: Cross multiply
412,992,027.30x = 619,488,040.95 × 289,372,289.70 - Step 4: Simplify right side
412,992,027.30x = 179,262,672,851,468,864 - Step 5: Solve for x
x = 179,262,672,851,468,864/412,992,027.30 - Step 6: Final answer
x = 434,058,434.55
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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.