Finding the Fourth Proportional to 279,286,509.26, 385,401,137.99 and 153,836,004.57
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Solution
The fourth proportional to 279,286,509.26, 385,401,137.99 and 153,836,004.57 is: 212,285,840.02
Step by Step Solution
- Step 1: Write the proportion equation
279,286,509.26 : 385,401,137.99 = 153,836,004.57 : x - Step 2: Convert to fraction form
279,286,509.26/385,401,137.99 = 153,836,004.57/x - Step 3: Cross multiply
279,286,509.26x = 385,401,137.99 × 153,836,004.57 - Step 4: Simplify right side
279,286,509.26x = 59,288,571,224,343,664 - Step 5: Solve for x
x = 59,288,571,224,343,664/279,286,509.26 - Step 6: Final answer
x = 212,285,840.02
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.