Finding the Fourth Proportional to 14,497,663.74, 20,006,237.90 and 7,970,904.87
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Solution
The fourth proportional to 14,497,663.74, 20,006,237.90 and 7,970,904.87 is: 10,999,552.89
Step by Step Solution
- Step 1: Write the proportion equation
14,497,663.74 : 20,006,237.90 = 7,970,904.87 : x - Step 2: Convert to fraction form
14,497,663.74/20,006,237.90 = 7,970,904.87/x - Step 3: Cross multiply
14,497,663.74x = 20,006,237.90 × 7,970,904.87 - Step 4: Simplify right side
14,497,663.74x = 159,467,819,067,634.06 - Step 5: Solve for x
x = 159,467,819,067,634.06/14,497,663.74 - Step 6: Final answer
x = 10,999,552.89
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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.