Finding the Fourth Proportional to 12,686,395.07, 17,507,237.21 and 6,885,178.31
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Solution
The fourth proportional to 12,686,395.07, 17,507,237.21 and 6,885,178.31 is: 9,501,552.59
Step by Step Solution
- Step 1: Write the proportion equation
12,686,395.07 : 17,507,237.21 = 6,885,178.31 : x - Step 2: Convert to fraction form
12,686,395.07/17,507,237.21 = 6,885,178.31/x - Step 3: Cross multiply
12,686,395.07x = 17,507,237.21 × 6,885,178.31 - Step 4: Simplify right side
12,686,395.07x = 120,540,449,906,316.92 - Step 5: Solve for x
x = 120,540,449,906,316.92/12,686,395.07 - Step 6: Final answer
x = 9,501,552.59
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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.