Finding the Fourth Proportional to 539,430,695.84, 744,414,361.20 and 291,912,050.09
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Solution
The fourth proportional to 539,430,695.84, 744,414,361.20 and 291,912,050.09 is: 402,838,629.63
Step by Step Solution
- Step 1: Write the proportion equation
539,430,695.84 : 744,414,361.20 = 291,912,050.09 : x - Step 2: Convert to fraction form
539,430,695.84/744,414,361.20 = 291,912,050.09/x - Step 3: Cross multiply
539,430,695.84x = 744,414,361.20 × 291,912,050.09 - Step 4: Simplify right side
539,430,695.84x = 217,303,522,290,607,680 - Step 5: Solve for x
x = 217,303,522,290,607,680/539,430,695.84 - Step 6: Final answer
x = 402,838,629.63
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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.