Finding the Fourth Proportional to 10,692,430.68, 16,022,134.71 and 7,220,561.28
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Solution
The fourth proportional to 10,692,430.68, 16,022,134.71 and 7,220,561.28 is: 10,819,691.89
Step by Step Solution
- Step 1: Write the proportion equation
10,692,430.68 : 16,022,134.71 = 7,220,561.28 : x - Step 2: Convert to fraction form
10,692,430.68/16,022,134.71 = 7,220,561.28/x - Step 3: Cross multiply
10,692,430.68x = 16,022,134.71 × 7,220,561.28 - Step 4: Simplify right side
10,692,430.68x = 115,688,805,509,970.05 - Step 5: Solve for x
x = 115,688,805,509,970.05/10,692,430.68 - Step 6: Final answer
x = 10,819,691.89
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.