Finding the Fourth Proportional to 920,021,849,079.18, 1,380,060,888,074.80 and 315,638,576,692.62
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Solution
The fourth proportional to 920,021,849,079.18, 1,380,060,888,074.80 and 315,638,576,692.62 is: 473,467,510,469.52
Step by Step Solution
- Step 1: Write the proportion equation
920,021,849,079.18 : 1,380,060,888,074.80 = 315,638,576,692.62 : x - Step 2: Convert to fraction form
920,021,849,079.18/1,380,060,888,074.80 = 315,638,576,692.62/x - Step 3: Cross multiply
920,021,849,079.18x = 1,380,060,888,074.80 × 315,638,576,692.62 - Step 4: Simplify right side
920,021,849,079.18x = 435,600,454,461,083,055,292,416 - Step 5: Solve for x
x = 435,600,454,461,083,055,292,416/920,021,849,079.18 - Step 6: Final answer
x = 473,467,510,469.52
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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.