Finding the Fourth Proportional to 1,720,806,028,415.20, 2,374,920,554,307.40 and 979,393,128,049.24
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Solution
The fourth proportional to 1,720,806,028,415.20, 2,374,920,554,307.40 and 979,393,128,049.24 is: 1,351,681,033,273.52
Step by Step Solution
- Step 1: Write the proportion equation
1,720,806,028,415.20 : 2,374,920,554,307.40 = 979,393,128,049.24 : x - Step 2: Convert to fraction form
1,720,806,028,415.20/2,374,920,554,307.40 = 979,393,128,049.24/x - Step 3: Cross multiply
1,720,806,028,415.20x = 2,374,920,554,307.40 × 979,393,128,049.24 - Step 4: Simplify right side
1,720,806,028,415.20x = 2,325,980,870,551,559,288,651,776 - Step 5: Solve for x
x = 2,325,980,870,551,559,288,651,776/1,720,806,028,415.20 - Step 6: Final answer
x = 1,351,681,033,273.52
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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.