Finding the Fourth Proportional to 16,218,643.91, 22,381,787.84 and 8,776,305.95
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Solution
The fourth proportional to 16,218,643.91, 22,381,787.84 and 8,776,305.95 is: 12,111,334.26
Step by Step Solution
- Step 1: Write the proportion equation
16,218,643.91 : 22,381,787.84 = 8,776,305.95 : x - Step 2: Convert to fraction form
16,218,643.91/22,381,787.84 = 8,776,305.95/x - Step 3: Cross multiply
16,218,643.91x = 22,381,787.84 × 8,776,305.95 - Step 4: Simplify right side
16,218,643.91x = 196,429,417,636,039.19 - Step 5: Solve for x
x = 196,429,417,636,039.19/16,218,643.91 - Step 6: Final answer
x = 12,111,334.26
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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.