Finding the Fourth Proportional to 112,087,027.68, 154,676,588.76 and 65,708,170.80
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Solution
The fourth proportional to 112,087,027.68, 154,676,588.76 and 65,708,170.80 is: 90,675,218.38
Step by Step Solution
- Step 1: Write the proportion equation
112,087,027.68 : 154,676,588.76 = 65,708,170.80 : x - Step 2: Convert to fraction form
112,087,027.68/154,676,588.76 = 65,708,170.80/x - Step 3: Cross multiply
112,087,027.68x = 154,676,588.76 × 65,708,170.80 - Step 4: Simplify right side
112,087,027.68x = 10,163,515,713,003,440 - Step 5: Solve for x
x = 10,163,515,713,003,440/112,087,027.68 - Step 6: Final answer
x = 90,675,218.38
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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.