Finding the Fourth Proportional to 20,985,743.25, 31,440,251.25 and 15,214,182.84
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Solution
The fourth proportional to 20,985,743.25, 31,440,251.25 and 15,214,182.84 is: 22,793,461.51
Step by Step Solution
- Step 1: Write the proportion equation
20,985,743.25 : 31,440,251.25 = 15,214,182.84 : x - Step 2: Convert to fraction form
20,985,743.25/31,440,251.25 = 15,214,182.84/x - Step 3: Cross multiply
20,985,743.25x = 31,440,251.25 × 15,214,182.84 - Step 4: Simplify right side
20,985,743.25x = 478,337,731,053,038.56 - Step 5: Solve for x
x = 478,337,731,053,038.56/20,985,743.25 - Step 6: Final answer
x = 22,793,461.51
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.