Finding the Fourth Proportional to 4,871,842,574.18, 6,721,990,448.87 and 2,757,298,517.70
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Solution
The fourth proportional to 4,871,842,574.18, 6,721,990,448.87 and 2,757,298,517.70 is: 3,804,419,789.53
Step by Step Solution
- Step 1: Write the proportion equation
4,871,842,574.18 : 6,721,990,448.87 = 2,757,298,517.70 : x - Step 2: Convert to fraction form
4,871,842,574.18/6,721,990,448.87 = 2,757,298,517.70/x - Step 3: Cross multiply
4,871,842,574.18x = 6,721,990,448.87 × 2,757,298,517.70 - Step 4: Simplify right side
4,871,842,574.18x = 18,534,534,300,649,021,440 - Step 5: Solve for x
x = 18,534,534,300,649,021,440/4,871,842,574.18 - Step 6: Final answer
x = 3,804,419,789.53
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1.5x scale
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.