Finding the Fourth Proportional to 2,128,971,132.80, 3,195,845,486.40 and 1,646,436,118.40
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Solution
The fourth proportional to 2,128,971,132.80, 3,195,845,486.40 and 1,646,436,118.40 is: 2,471,501,542.02
Step by Step Solution
- Step 1: Write the proportion equation
2,128,971,132.80 : 3,195,845,486.40 = 1,646,436,118.40 : x - Step 2: Convert to fraction form
2,128,971,132.80/3,195,845,486.40 = 1,646,436,118.40/x - Step 3: Cross multiply
2,128,971,132.80x = 3,195,845,486.40 × 1,646,436,118.40 - Step 4: Simplify right side
2,128,971,132.80x = 5,261,755,437,634,576,384 - Step 5: Solve for x
x = 5,261,755,437,634,576,384/2,128,971,132.80 - Step 6: Final answer
x = 2,471,501,542.02
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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.