Finding the Fourth Proportional to 1,520,482,476,482.10, 2,098,445,699,479.20 and 903,187,633,391.90
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Solution
The fourth proportional to 1,520,482,476,482.10, 2,098,445,699,479.20 and 903,187,633,391.90 is: 1,246,505,786,438.99
Step by Step Solution
- Step 1: Write the proportion equation
1,520,482,476,482.10 : 2,098,445,699,479.20 = 903,187,633,391.90 : x - Step 2: Convert to fraction form
1,520,482,476,482.10/2,098,445,699,479.20 = 903,187,633,391.90/x - Step 3: Cross multiply
1,520,482,476,482.10x = 2,098,445,699,479.20 × 903,187,633,391.90 - Step 4: Simplify right side
1,520,482,476,482.10x = 1,895,290,205,114,028,888,424,448 - Step 5: Solve for x
x = 1,895,290,205,114,028,888,424,448/1,520,482,476,482.10 - Step 6: Final answer
x = 1,246,505,786,438.99
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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.