Finding the Fourth Proportional to 201,498,355.62, 302,246,518.91 and 78,689,143.91
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Solution
The fourth proportional to 201,498,355.62, 302,246,518.91 and 78,689,143.91 is: 118,033,319.68
Step by Step Solution
- Step 1: Write the proportion equation
201,498,355.62 : 302,246,518.91 = 78,689,143.91 : x - Step 2: Convert to fraction form
201,498,355.62/302,246,518.91 = 78,689,143.91/x - Step 3: Cross multiply
201,498,355.62x = 302,246,518.91 × 78,689,143.91 - Step 4: Simplify right side
201,498,355.62x = 23,783,519,823,167,692 - Step 5: Solve for x
x = 23,783,519,823,167,692/201,498,355.62 - Step 6: Final answer
x = 118,033,319.68
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.