Finding the Fourth Proportional to 1,478,876,835.09, 2,040,913,805.10 and 818,827,171.41
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Solution
The fourth proportional to 1,478,876,835.09, 2,040,913,805.10 and 818,827,171.41 is: 1,130,016,806.32
Step by Step Solution
- Step 1: Write the proportion equation
1,478,876,835.09 : 2,040,913,805.10 = 818,827,171.41 : x - Step 2: Convert to fraction form
1,478,876,835.09/2,040,913,805.10 = 818,827,171.41/x - Step 3: Cross multiply
1,478,876,835.09x = 2,040,913,805.10 × 818,827,171.41 - Step 4: Simplify right side
1,478,876,835.09x = 1,671,155,678,121,652,992 - Step 5: Solve for x
x = 1,671,155,678,121,652,992/1,478,876,835.09 - Step 6: Final answer
x = 1,130,016,806.32
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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.