Finding the Fourth Proportional to 9,702,779.68, 13,389,601.36 and 5,351,772.57
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Solution
The fourth proportional to 9,702,779.68, 13,389,601.36 and 5,351,772.57 is: 7,385,316.75
Step by Step Solution
- Step 1: Write the proportion equation
9,702,779.68 : 13,389,601.36 = 5,351,772.57 : x - Step 2: Convert to fraction form
9,702,779.68/13,389,601.36 = 5,351,772.57/x - Step 3: Cross multiply
9,702,779.68x = 13,389,601.36 × 5,351,772.57 - Step 4: Simplify right side
9,702,779.68x = 71,658,101,281,682.70 - Step 5: Solve for x
x = 71,658,101,281,682.70/9,702,779.68 - Step 6: Final answer
x = 7,385,316.75
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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.