Finding the Fourth Proportional to 122,221,113.68, 168,661,771.08 and 67,216,990.16
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Solution
The fourth proportional to 122,221,113.68, 168,661,771.08 and 67,216,990.16 is: 92,757,595.36
Step by Step Solution
- Step 1: Write the proportion equation
122,221,113.68 : 168,661,771.08 = 67,216,990.16 : x - Step 2: Convert to fraction form
122,221,113.68/168,661,771.08 = 67,216,990.16/x - Step 3: Cross multiply
122,221,113.68x = 168,661,771.08 × 67,216,990.16 - Step 4: Simplify right side
122,221,113.68x = 11,336,936,607,052,532 - Step 5: Solve for x
x = 11,336,936,607,052,532/122,221,113.68 - Step 6: Final answer
x = 92,757,595.36
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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.