Finding the Fourth Proportional to 7,402,040.80, 11,087,314.80 and 6,142,328.80
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Solution
The fourth proportional to 7,402,040.80, 11,087,314.80 and 6,142,328.80 is: 9,200,426.59
Step by Step Solution
- Step 1: Write the proportion equation
7,402,040.80 : 11,087,314.80 = 6,142,328.80 : x - Step 2: Convert to fraction form
7,402,040.80/11,087,314.80 = 6,142,328.80/x - Step 3: Cross multiply
7,402,040.80x = 11,087,314.80 × 6,142,328.80 - Step 4: Simplify right side
7,402,040.80x = 68,101,933,010,706.24 - Step 5: Solve for x
x = 68,101,933,010,706.24/7,402,040.80 - Step 6: Final answer
x = 9,200,426.59
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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.