Finding the Fourth Proportional to 87,221,471.78, 120,366,438.19 and 48,064,649.75
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Solution
The fourth proportional to 87,221,471.78, 120,366,438.19 and 48,064,649.75 is: 66,329,661.43
Step by Step Solution
- Step 1: Write the proportion equation
87,221,471.78 : 120,366,438.19 = 48,064,649.75 : x - Step 2: Convert to fraction form
87,221,471.78/120,366,438.19 = 48,064,649.75/x - Step 3: Cross multiply
87,221,471.78x = 120,366,438.19 × 48,064,649.75 - Step 4: Simplify right side
87,221,471.78x = 5,785,370,693,017,051 - Step 5: Solve for x
x = 5,785,370,693,017,051/87,221,471.78 - Step 6: Final answer
x = 66,329,661.43
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.