Finding the Fourth Proportional to 19,474,515.18, 26,872,489.58 and 11,217,262.94
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Solution
The fourth proportional to 19,474,515.18, 26,872,489.58 and 11,217,262.94 is: 15,478,474.24
Step by Step Solution
- Step 1: Write the proportion equation
19,474,515.18 : 26,872,489.58 = 11,217,262.94 : x - Step 2: Convert to fraction form
19,474,515.18/26,872,489.58 = 11,217,262.94/x - Step 3: Cross multiply
19,474,515.18x = 26,872,489.58 × 11,217,262.94 - Step 4: Simplify right side
19,474,515.18x = 301,435,781,471,270.12 - Step 5: Solve for x
x = 301,435,781,471,270.12/19,474,515.18 - Step 6: Final answer
x = 15,478,474.24
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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.