Finding the Fourth Proportional to 1,679,565,551.67, 2,519,254,160.43 and 515,030,845.79
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Solution
The fourth proportional to 1,679,565,551.67, 2,519,254,160.43 and 515,030,845.79 is: 772,517,392.79
Step by Step Solution
- Step 1: Write the proportion equation
1,679,565,551.67 : 2,519,254,160.43 = 515,030,845.79 : x - Step 2: Convert to fraction form
1,679,565,551.67/2,519,254,160.43 = 515,030,845.79/x - Step 3: Cross multiply
1,679,565,551.67x = 2,519,254,160.43 × 515,030,845.79 - Step 4: Simplify right side
1,679,565,551.67x = 1,297,493,600,993,643,008 - Step 5: Solve for x
x = 1,297,493,600,993,643,008/1,679,565,551.67 - Step 6: Final answer
x = 772,517,392.79
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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.