Finding the Fourth Proportional to 13,858,289.16, 19,124,562.97 and 7,663,752.66
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Solution
The fourth proportional to 13,858,289.16, 19,124,562.97 and 7,663,752.66 is: 10,576,047.20
Step by Step Solution
- Step 1: Write the proportion equation
13,858,289.16 : 19,124,562.97 = 7,663,752.66 : x - Step 2: Convert to fraction form
13,858,289.16/19,124,562.97 = 7,663,752.66/x - Step 3: Cross multiply
13,858,289.16x = 19,124,562.97 × 7,663,752.66 - Step 4: Simplify right side
13,858,289.16x = 146,565,920,332,675 - Step 5: Solve for x
x = 146,565,920,332,675/13,858,289.16 - Step 6: Final answer
x = 10,576,047.20
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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.