Finding the Fourth Proportional to 28,257,871.74, 42,393,128.49 and 10,306,975.74
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Solution
The fourth proportional to 28,257,871.74, 42,393,128.49 and 10,306,975.74 is: 15,462,769.13
Step by Step Solution
- Step 1: Write the proportion equation
28,257,871.74 : 42,393,128.49 = 10,306,975.74 : x - Step 2: Convert to fraction form
28,257,871.74/42,393,128.49 = 10,306,975.74/x - Step 3: Cross multiply
28,257,871.74x = 42,393,128.49 × 10,306,975.74 - Step 4: Simplify right side
28,257,871.74x = 436,944,946,889,132.88 - Step 5: Solve for x
x = 436,944,946,889,132.88/28,257,871.74 - Step 6: Final answer
x = 15,462,769.13
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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.