Finding the Fourth Proportional to 87,845,782,363.18, 121,218,708,876.12 and 49,266,268,460.11
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Solution
The fourth proportional to 87,845,782,363.18, 121,218,708,876.12 and 49,266,268,460.11 is: 67,982,699,831.72
Step by Step Solution
- Step 1: Write the proportion equation
87,845,782,363.18 : 121,218,708,876.12 = 49,266,268,460.11 : x - Step 2: Convert to fraction form
87,845,782,363.18/121,218,708,876.12 = 49,266,268,460.11/x - Step 3: Cross multiply
87,845,782,363.18x = 121,218,708,876.12 × 49,266,268,460.11 - Step 4: Simplify right side
87,845,782,363.18x = 5,971,993,453,878,846,685,184 - Step 5: Solve for x
x = 5,971,993,453,878,846,685,184/87,845,782,363.18 - Step 6: Final answer
x = 67,982,699,831.72
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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.