Finding the Fourth Proportional to 87,221,478.76, 120,366,447.83 and 48,064,656.73
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Solution
The fourth proportional to 87,221,478.76, 120,366,447.83 and 48,064,656.73 is: 66,329,671.07
Step by Step Solution
- Step 1: Write the proportion equation
87,221,478.76 : 120,366,447.83 = 48,064,656.73 : x - Step 2: Convert to fraction form
87,221,478.76/120,366,447.83 = 48,064,656.73/x - Step 3: Cross multiply
87,221,478.76x = 120,366,447.83 × 48,064,656.73 - Step 4: Simplify right side
87,221,478.76x = 5,785,371,996,758,403 - Step 5: Solve for x
x = 5,785,371,996,758,403/87,221,478.76 - Step 6: Final answer
x = 66,329,671.07
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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.