Finding the Third Proportional to 120,639,981.75 and 260,411,823.75
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Solution
The third proportional to 120,639,981.75 and 260,411,823.75 is: 562,121,420.82
Step by Step Solution
- Step 1: Write the proportion equation
120,639,981.75 : 260,411,823.75 = 260,411,823.75 : x - Step 2: Convert to fraction form
120,639,981.75/260,411,823.75 = 260,411,823.75/x - Step 3: Cross multiply
120,639,981.75x = 260,411,823.75 × 260,411,823.75 - Step 4: Simplify right side
120,639,981.75x = 67,814,317,948,801,064 - Step 5: Solve for x
x = 67,814,317,948,801,064/120,639,981.75 - Step 6: Final answer
x = 562,121,420.82
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Why These Related Problems?
These problems maintain the same ratio (2.16) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.