Finding the Fourth Proportional to 7,767,763.98, 10,724,107.50 and 6,905,939.73
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Solution
The fourth proportional to 7,767,763.98, 10,724,107.50 and 6,905,939.73 is: 9,534,280.42
Step by Step Solution
- Step 1: Write the proportion equation
7,767,763.98 : 10,724,107.50 = 6,905,939.73 : x - Step 2: Convert to fraction form
7,767,763.98/10,724,107.50 = 6,905,939.73/x - Step 3: Cross multiply
7,767,763.98x = 10,724,107.50 × 6,905,939.73 - Step 4: Simplify right side
7,767,763.98x = 74,060,039,986,928.30 - Step 5: Solve for x
x = 74,060,039,986,928.30/7,767,763.98 - Step 6: Final answer
x = 9,534,280.42
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1.5x scale
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.