Finding the Fourth Proportional to 28,811,868.68, 43,217,876.84 and 11,772,541.62
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Solution
The fourth proportional to 28,811,868.68, 43,217,876.84 and 11,772,541.62 is: 17,658,842.59
Step by Step Solution
- Step 1: Write the proportion equation
28,811,868.68 : 43,217,876.84 = 11,772,541.62 : x - Step 2: Convert to fraction form
28,811,868.68/43,217,876.84 = 11,772,541.62/x - Step 3: Cross multiply
28,811,868.68x = 43,217,876.84 × 11,772,541.62 - Step 4: Simplify right side
28,811,868.68x = 508,784,253,768,071.38 - Step 5: Solve for x
x = 508,784,253,768,071.38/28,811,868.68 - Step 6: Final answer
x = 17,658,842.59
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.