Finding the Fourth Proportional to 12,950,746.24, 17,871,560.40 and 7,149,403.12
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Solution
The fourth proportional to 12,950,746.24, 17,871,560.40 and 7,149,403.12 is: 9,865,917.17
Step by Step Solution
- Step 1: Write the proportion equation
12,950,746.24 : 17,871,560.40 = 7,149,403.12 : x - Step 2: Convert to fraction form
12,950,746.24/17,871,560.40 = 7,149,403.12/x - Step 3: Cross multiply
12,950,746.24x = 17,871,560.40 × 7,149,403.12 - Step 4: Simplify right side
12,950,746.24x = 127,770,989,683,028.44 - Step 5: Solve for x
x = 127,770,989,683,028.44/12,950,746.24 - Step 6: Final answer
x = 9,865,917.17
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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.