Finding the Fourth Proportional to 1,721,841,968.40, 2,582,762,952.60 and 739,101,271.20
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Solution
The fourth proportional to 1,721,841,968.40, 2,582,762,952.60 and 739,101,271.20 is: 1,108,651,906.80
Step by Step Solution
- Step 1: Write the proportion equation
1,721,841,968.40 : 2,582,762,952.60 = 739,101,271.20 : x - Step 2: Convert to fraction form
1,721,841,968.40/2,582,762,952.60 = 739,101,271.20/x - Step 3: Cross multiply
1,721,841,968.40x = 2,582,762,952.60 × 739,101,271.20 - Step 4: Simplify right side
1,721,841,968.40x = 1,908,923,381,474,925,312 - Step 5: Solve for x
x = 1,908,923,381,474,925,312/1,721,841,968.40 - Step 6: Final answer
x = 1,108,651,906.80
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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.