Finding the Fourth Proportional to 10,368,403.80, 15,525,389.70 and 7,319,304.60
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Solution
The fourth proportional to 10,368,403.80, 15,525,389.70 and 7,319,304.60 is: 10,959,744.47
Step by Step Solution
- Step 1: Write the proportion equation
10,368,403.80 : 15,525,389.70 = 7,319,304.60 : x - Step 2: Convert to fraction form
10,368,403.80/15,525,389.70 = 7,319,304.60/x - Step 3: Cross multiply
10,368,403.80x = 15,525,389.70 × 7,319,304.60 - Step 4: Simplify right side
10,368,403.80x = 113,635,056,248,002.61 - Step 5: Solve for x
x = 113,635,056,248,002.61/10,368,403.80 - Step 6: Final answer
x = 10,959,744.47
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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.