Finding the Fourth Proportional to 1,628,561,737.80, 2,442,842,606.70 and 939,814,201.80
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Solution
The fourth proportional to 1,628,561,737.80, 2,442,842,606.70 and 939,814,201.80 is: 1,409,721,302.70
Step by Step Solution
- Step 1: Write the proportion equation
1,628,561,737.80 : 2,442,842,606.70 = 939,814,201.80 : x - Step 2: Convert to fraction form
1,628,561,737.80/2,442,842,606.70 = 939,814,201.80/x - Step 3: Cross multiply
1,628,561,737.80x = 2,442,842,606.70 × 939,814,201.80 - Step 4: Simplify right side
1,628,561,737.80x = 2,295,818,174,538,791,424 - Step 5: Solve for x
x = 2,295,818,174,538,791,424/1,628,561,737.80 - Step 6: Final answer
x = 1,409,721,302.70
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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.