Finding the Fourth Proportional to 1,478,876,836.09, 2,040,913,806.48 and 818,827,172.41
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Solution
The fourth proportional to 1,478,876,836.09, 2,040,913,806.48 and 818,827,172.41 is: 1,130,016,807.70
Step by Step Solution
- Step 1: Write the proportion equation
1,478,876,836.09 : 2,040,913,806.48 = 818,827,172.41 : x - Step 2: Convert to fraction form
1,478,876,836.09/2,040,913,806.48 = 818,827,172.41/x - Step 3: Cross multiply
1,478,876,836.09x = 2,040,913,806.48 × 818,827,172.41 - Step 4: Simplify right side
1,478,876,836.09x = 1,671,155,681,292,548,352 - Step 5: Solve for x
x = 1,671,155,681,292,548,352/1,478,876,836.09 - Step 6: Final answer
x = 1,130,016,807.70
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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.