Finding the Fourth Proportional to 81,470,403.84, 112,401,643.41 and 46,184,425.95
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Solution
The fourth proportional to 81,470,403.84, 112,401,643.41 and 46,184,425.95 is: 63,718,910.57
Step by Step Solution
- Step 1: Write the proportion equation
81,470,403.84 : 112,401,643.41 = 46,184,425.95 : x - Step 2: Convert to fraction form
81,470,403.84/112,401,643.41 = 46,184,425.95/x - Step 3: Cross multiply
81,470,403.84x = 112,401,643.41 × 46,184,425.95 - Step 4: Simplify right side
81,470,403.84x = 5,191,205,376,727,451 - Step 5: Solve for x
x = 5,191,205,376,727,451/81,470,403.84 - Step 6: Final answer
x = 63,718,910.57
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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.