Finding the Fourth Proportional to 1,611,881,851.80, 2,413,791,699.30 and 1,289,395,579.80
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Solution
The fourth proportional to 1,611,881,851.80, 2,413,791,699.30 and 1,289,395,579.80 is: 1,930,868,781.83
Step by Step Solution
- Step 1: Write the proportion equation
1,611,881,851.80 : 2,413,791,699.30 = 1,289,395,579.80 : x - Step 2: Convert to fraction form
1,611,881,851.80/2,413,791,699.30 = 1,289,395,579.80/x - Step 3: Cross multiply
1,611,881,851.80x = 2,413,791,699.30 × 1,289,395,579.80 - Step 4: Simplify right side
1,611,881,851.80x = 3,112,332,347,635,351,040 - Step 5: Solve for x
x = 3,112,332,347,635,351,040/1,611,881,851.80 - Step 6: Final answer
x = 1,930,868,781.83
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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.