Finding the Fourth Proportional to 10,430,977.20, 15,613,288.20 and 7,444,993.20
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Solution
The fourth proportional to 10,430,977.20, 15,613,288.20 and 7,444,993.20 is: 11,143,809.66
Step by Step Solution
- Step 1: Write the proportion equation
10,430,977.20 : 15,613,288.20 = 7,444,993.20 : x - Step 2: Convert to fraction form
10,430,977.20/15,613,288.20 = 7,444,993.20/x - Step 3: Cross multiply
10,430,977.20x = 15,613,288.20 × 7,444,993.20 - Step 4: Simplify right side
10,430,977.20x = 116,240,824,478,640.23 - Step 5: Solve for x
x = 116,240,824,478,640.23/10,430,977.20 - Step 6: Final answer
x = 11,143,809.66
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.