Finding the Fourth Proportional to 10,368,319.30, 15,525,262.95 and 7,319,220.10
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Solution
The fourth proportional to 10,368,319.30, 15,525,262.95 and 7,319,220.10 is: 10,959,617.79
Step by Step Solution
- Step 1: Write the proportion equation
10,368,319.30 : 15,525,262.95 = 7,319,220.10 : x - Step 2: Convert to fraction form
10,368,319.30/15,525,262.95 = 7,319,220.10/x - Step 3: Cross multiply
10,368,319.30x = 15,525,262.95 × 7,319,220.10 - Step 4: Simplify right side
10,368,319.30x = 113,632,816,641,425.28 - Step 5: Solve for x
x = 113,632,816,641,425.28/10,368,319.30 - Step 6: Final answer
x = 10,959,617.79
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1.5x scale
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.