Finding the Fourth Proportional to 539,430,738.63, 744,414,420.26 and 291,912,092.79
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Solution
The fourth proportional to 539,430,738.63, 744,414,420.26 and 291,912,092.79 is: 402,838,688.56
Step by Step Solution
- Step 1: Write the proportion equation
539,430,738.63 : 744,414,420.26 = 291,912,092.79 : x - Step 2: Convert to fraction form
539,430,738.63/744,414,420.26 = 291,912,092.79/x - Step 3: Cross multiply
539,430,738.63x = 744,414,420.26 × 291,912,092.79 - Step 4: Simplify right side
539,430,738.63x = 217,303,571,319,691,616 - Step 5: Solve for x
x = 217,303,571,319,691,616/539,430,738.63 - Step 6: Final answer
x = 402,838,688.56
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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.