Finding the Fourth Proportional to 1,550,603,781.74, 2,140,014,125.48 and 881,649,059.97
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Solution
The fourth proportional to 1,550,603,781.74, 2,140,014,125.48 and 881,649,059.97 is: 1,216,778,563.47
Step by Step Solution
- Step 1: Write the proportion equation
1,550,603,781.74 : 2,140,014,125.48 = 881,649,059.97 : x - Step 2: Convert to fraction form
1,550,603,781.74/2,140,014,125.48 = 881,649,059.97/x - Step 3: Cross multiply
1,550,603,781.74x = 2,140,014,125.48 × 881,649,059.97 - Step 4: Simplify right side
1,550,603,781.74x = 1,886,741,442,049,481,472 - Step 5: Solve for x
x = 1,886,741,442,049,481,472/1,550,603,781.74 - Step 6: Final answer
x = 1,216,778,563.47
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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.