Finding the Fourth Proportional to 2,628,352,227.60, 3,942,272,122.20 and 689,655,459.60
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Solution
The fourth proportional to 2,628,352,227.60, 3,942,272,122.20 and 689,655,459.60 is: 1,034,415,959.84
Step by Step Solution
- Step 1: Write the proportion equation
2,628,352,227.60 : 3,942,272,122.20 = 689,655,459.60 : x - Step 2: Convert to fraction form
2,628,352,227.60/3,942,272,122.20 = 689,655,459.60/x - Step 3: Cross multiply
2,628,352,227.60x = 3,942,272,122.20 × 689,655,459.60 - Step 4: Simplify right side
2,628,352,227.60x = 2,718,809,492,304,108,544 - Step 5: Solve for x
x = 2,718,809,492,304,108,544/2,628,352,227.60 - Step 6: Final answer
x = 1,034,415,959.84
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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.