Finding the Fourth Proportional to 4,428,686,124.40, 6,643,985,780.40 and 1,323,582,649.60
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Solution
The fourth proportional to 4,428,686,124.40, 6,643,985,780.40 and 1,323,582,649.60 is: 1,985,659,867.53
Step by Step Solution
- Step 1: Write the proportion equation
4,428,686,124.40 : 6,643,985,780.40 = 1,323,582,649.60 : x - Step 2: Convert to fraction form
4,428,686,124.40/6,643,985,780.40 = 1,323,582,649.60/x - Step 3: Cross multiply
4,428,686,124.40x = 6,643,985,780.40 × 1,323,582,649.60 - Step 4: Simplify right side
4,428,686,124.40x = 8,793,864,303,126,554,624 - Step 5: Solve for x
x = 8,793,864,303,126,554,624/4,428,686,124.40 - Step 6: Final answer
x = 1,985,659,867.53
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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.