Finding the Fourth Proportional to 3,933,875,926.91, 5,429,058,243.14 and 2,240,402,176.37
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Solution
The fourth proportional to 3,933,875,926.91, 5,429,058,243.14 and 2,240,402,176.37 is: 3,091,931,247.85
Step by Step Solution
- Step 1: Write the proportion equation
3,933,875,926.91 : 5,429,058,243.14 = 2,240,402,176.37 : x - Step 2: Convert to fraction form
3,933,875,926.91/5,429,058,243.14 = 2,240,402,176.37/x - Step 3: Cross multiply
3,933,875,926.91x = 5,429,058,243.14 × 2,240,402,176.37 - Step 4: Simplify right side
3,933,875,926.91x = 12,163,273,903,570,343,936 - Step 5: Solve for x
x = 12,163,273,903,570,343,936/3,933,875,926.91 - Step 6: Final answer
x = 3,091,931,247.85
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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.