Finding the Fourth Proportional to 20,832,235.99, 28,748,715.58 and 11,539,948.39
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Solution
The fourth proportional to 20,832,235.99, 28,748,715.58 and 11,539,948.39 is: 15,925,256.14
Step by Step Solution
- Step 1: Write the proportion equation
20,832,235.99 : 28,748,715.58 = 11,539,948.39 : x - Step 2: Convert to fraction form
20,832,235.99/28,748,715.58 = 11,539,948.39/x - Step 3: Cross multiply
20,832,235.99x = 28,748,715.58 × 11,539,948.39 - Step 4: Simplify right side
20,832,235.99x = 331,758,694,071,988.94 - Step 5: Solve for x
x = 331,758,694,071,988.94/20,832,235.99 - Step 6: Final answer
x = 15,925,256.14
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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.