Finding the Fourth Proportional to 1,028,712,186.64, 1,419,454,534.62 and 605,682,336.70
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Solution
The fourth proportional to 1,028,712,186.64, 1,419,454,534.62 and 605,682,336.70 is: 835,742,543.48
Step by Step Solution
- Step 1: Write the proportion equation
1,028,712,186.64 : 1,419,454,534.62 = 605,682,336.70 : x - Step 2: Convert to fraction form
1,028,712,186.64/1,419,454,534.62 = 605,682,336.70/x - Step 3: Cross multiply
1,028,712,186.64x = 1,419,454,534.62 × 605,682,336.70 - Step 4: Simplify right side
1,028,712,186.64x = 859,738,539,368,052,608 - Step 5: Solve for x
x = 859,738,539,368,052,608/1,028,712,186.64 - Step 6: Final answer
x = 835,742,543.48
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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.