Finding the Fourth Proportional to 15,569,482.12, 21,485,799.80 and 8,600,639.09
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Solution
The fourth proportional to 15,569,482.12, 21,485,799.80 and 8,600,639.09 is: 11,868,834.69
Step by Step Solution
- Step 1: Write the proportion equation
15,569,482.12 : 21,485,799.80 = 8,600,639.09 : x - Step 2: Convert to fraction form
15,569,482.12/21,485,799.80 = 8,600,639.09/x - Step 3: Cross multiply
15,569,482.12x = 21,485,799.80 × 8,600,639.09 - Step 4: Simplify right side
15,569,482.12x = 184,791,609,548,817.84 - Step 5: Solve for x
x = 184,791,609,548,817.84/15,569,482.12 - Step 6: Final answer
x = 11,868,834.69
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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.