Finding the Fourth Proportional to 159,599,195.84, 220,246,790.77 and 86,260,337.84
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Solution
The fourth proportional to 159,599,195.84, 220,246,790.77 and 86,260,337.84 is: 119,039,212.45
Step by Step Solution
- Step 1: Write the proportion equation
159,599,195.84 : 220,246,790.77 = 86,260,337.84 : x - Step 2: Convert to fraction form
159,599,195.84/220,246,790.77 = 86,260,337.84/x - Step 3: Cross multiply
159,599,195.84x = 220,246,790.77 × 86,260,337.84 - Step 4: Simplify right side
159,599,195.84x = 18,998,562,580,168,792 - Step 5: Solve for x
x = 18,998,562,580,168,792/159,599,195.84 - Step 6: Final answer
x = 119,039,212.45
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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.