Finding the Fourth Proportional to 11,685,020.28, 16,125,030.36 and 6,528,420.42
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Solution
The fourth proportional to 11,685,020.28, 16,125,030.36 and 6,528,420.42 is: 9,009,053.90
Step by Step Solution
- Step 1: Write the proportion equation
11,685,020.28 : 16,125,030.36 = 6,528,420.42 : x - Step 2: Convert to fraction form
11,685,020.28/16,125,030.36 = 6,528,420.42/x - Step 3: Cross multiply
11,685,020.28x = 16,125,030.36 × 6,528,420.42 - Step 4: Simplify right side
11,685,020.28x = 105,270,977,475,343.95 - Step 5: Solve for x
x = 105,270,977,475,343.95/11,685,020.28 - Step 6: Final answer
x = 9,009,053.90
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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.