Finding the Fourth Proportional to 1,560,218,428.08, 2,153,100,912.57 and 855,355,275.90
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Solution
The fourth proportional to 1,560,218,428.08, 2,153,100,912.57 and 855,355,275.90 is: 1,180,389,996.66
Step by Step Solution
- Step 1: Write the proportion equation
1,560,218,428.08 : 2,153,100,912.57 = 855,355,275.90 : x - Step 2: Convert to fraction form
1,560,218,428.08/2,153,100,912.57 = 855,355,275.90/x - Step 3: Cross multiply
1,560,218,428.08x = 2,153,100,912.57 × 855,355,275.90 - Step 4: Simplify right side
1,560,218,428.08x = 1,841,666,225,111,854,336 - Step 5: Solve for x
x = 1,841,666,225,111,854,336/1,560,218,428.08 - Step 6: Final answer
x = 1,180,389,996.66
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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.