Finding the Fourth Proportional to 419,782,729.33, 579,485,947.35 and 271,176,325.17
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Solution
The fourth proportional to 419,782,729.33, 579,485,947.35 and 271,176,325.17 is: 374,343,341.70
Step by Step Solution
- Step 1: Write the proportion equation
419,782,729.33 : 579,485,947.35 = 271,176,325.17 : x - Step 2: Convert to fraction form
419,782,729.33/579,485,947.35 = 271,176,325.17/x - Step 3: Cross multiply
419,782,729.33x = 579,485,947.35 × 271,176,325.17 - Step 4: Simplify right side
419,782,729.33x = 157,142,869,687,340,768 - Step 5: Solve for x
x = 157,142,869,687,340,768/419,782,729.33 - Step 6: Final answer
x = 374,343,341.70
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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.