Finding the Fourth Proportional to 77,533,006.33, 106,994,163.07 and 42,251,117.95
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Solution
The fourth proportional to 77,533,006.33, 106,994,163.07 and 42,251,117.95 is: 58,305,787.66
Step by Step Solution
- Step 1: Write the proportion equation
77,533,006.33 : 106,994,163.07 = 42,251,117.95 : x - Step 2: Convert to fraction form
77,533,006.33/106,994,163.07 = 42,251,117.95/x - Step 3: Cross multiply
77,533,006.33x = 106,994,163.07 × 42,251,117.95 - Step 4: Simplify right side
77,533,006.33x = 4,520,623,003,832,104 - Step 5: Solve for x
x = 4,520,623,003,832,104/77,533,006.33 - Step 6: Final answer
x = 58,305,787.66
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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.