Finding the Fourth Proportional to 254,438,603.62, 381,657,907.25 and 72,685,781.62
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Solution
The fourth proportional to 254,438,603.62, 381,657,907.25 and 72,685,781.62 is: 109,028,672.95
Step by Step Solution
- Step 1: Write the proportion equation
254,438,603.62 : 381,657,907.25 = 72,685,781.62 : x - Step 2: Convert to fraction form
254,438,603.62/381,657,907.25 = 72,685,781.62/x - Step 3: Cross multiply
254,438,603.62x = 381,657,907.25 × 72,685,781.62 - Step 4: Simplify right side
254,438,603.62x = 27,741,103,299,919,716 - Step 5: Solve for x
x = 27,741,103,299,919,716/254,438,603.62 - Step 6: Final answer
x = 109,028,672.95
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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.