Finding the Fourth Proportional to 329,652,557.40, 494,478,836.10 and 99,657,139.80
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Solution
The fourth proportional to 329,652,557.40, 494,478,836.10 and 99,657,139.80 is: 149,485,709.70
Step by Step Solution
- Step 1: Write the proportion equation
329,652,557.40 : 494,478,836.10 = 99,657,139.80 : x - Step 2: Convert to fraction form
329,652,557.40/494,478,836.10 = 99,657,139.80/x - Step 3: Cross multiply
329,652,557.40x = 494,478,836.10 × 99,657,139.80 - Step 4: Simplify right side
329,652,557.40x = 49,278,346,497,358,984 - Step 5: Solve for x
x = 49,278,346,497,358,984/329,652,557.40 - Step 6: Final answer
x = 149,485,709.70
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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.