Finding the Fourth Proportional to 9,729,464.48, 13,430,449.68 and 8,709,104.80
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Solution
The fourth proportional to 9,729,464.48, 13,430,449.68 and 8,709,104.80 is: 12,021,955.99
Step by Step Solution
- Step 1: Write the proportion equation
9,729,464.48 : 13,430,449.68 = 8,709,104.80 : x - Step 2: Convert to fraction form
9,729,464.48/13,430,449.68 = 8,709,104.80/x - Step 3: Cross multiply
9,729,464.48x = 13,430,449.68 × 8,709,104.80 - Step 4: Simplify right side
9,729,464.48x = 116,967,193,774,246.47 - Step 5: Solve for x
x = 116,967,193,774,246.47/9,729,464.48 - Step 6: Final answer
x = 12,021,955.99
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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.