Finding the Fourth Proportional to 3,937,010,478.30, 5,905,515,717.45 and 3,637,702,907.10
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Solution
The fourth proportional to 3,937,010,478.30, 5,905,515,717.45 and 3,637,702,907.10 is: 5,456,554,360.65
Step by Step Solution
- Step 1: Write the proportion equation
3,937,010,478.30 : 5,905,515,717.45 = 3,637,702,907.10 : x - Step 2: Convert to fraction form
3,937,010,478.30/5,905,515,717.45 = 3,637,702,907.10/x - Step 3: Cross multiply
3,937,010,478.30x = 5,905,515,717.45 × 3,637,702,907.10 - Step 4: Simplify right side
3,937,010,478.30x = 21,482,511,693,292,605,440 - Step 5: Solve for x
x = 21,482,511,693,292,605,440/3,937,010,478.30 - Step 6: Final answer
x = 5,456,554,360.65
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1.5x scale
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.