Finding the Fourth Proportional to 1,869,692,648, 2,580,251,825.76 and 1,034,302,815.68
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Solution
The fourth proportional to 1,869,692,648, 2,580,251,825.76 and 1,034,302,815.68 is: 1,427,379,912.63
Step by Step Solution
- Step 1: Write the proportion equation
1,869,692,648 : 2,580,251,825.76 = 1,034,302,815.68 : x - Step 2: Convert to fraction form
1,869,692,648/2,580,251,825.76 = 1,034,302,815.68/x - Step 3: Cross multiply
1,869,692,648x = 2,580,251,825.76 × 1,034,302,815.68 - Step 4: Simplify right side
1,869,692,648x = 2,668,761,728,547,028,992 - Step 5: Solve for x
x = 2,668,761,728,547,028,992/1,869,692,648 - Step 6: Final answer
x = 1,427,379,912.63
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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.