Finding the Fourth Proportional to 51,201,262.66, 76,801,967.91 and 20,909,125.66
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Solution
The fourth proportional to 51,201,262.66, 76,801,967.91 and 20,909,125.66 is: 31,363,718.68
Step by Step Solution
- Step 1: Write the proportion equation
51,201,262.66 : 76,801,967.91 = 20,909,125.66 : x - Step 2: Convert to fraction form
51,201,262.66/76,801,967.91 = 20,909,125.66/x - Step 3: Cross multiply
51,201,262.66x = 76,801,967.91 × 20,909,125.66 - Step 4: Simplify right side
51,201,262.66x = 1,605,861,997,965,477.50 - Step 5: Solve for x
x = 1,605,861,997,965,477.50/51,201,262.66 - Step 6: Final answer
x = 31,363,718.68
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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.