Finding the Fourth Proportional to 431,048,927.70, 646,573,391.55 and 189,184,223.70
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Solution
The fourth proportional to 431,048,927.70, 646,573,391.55 and 189,184,223.70 is: 283,776,335.55
Step by Step Solution
- Step 1: Write the proportion equation
431,048,927.70 : 646,573,391.55 = 189,184,223.70 : x - Step 2: Convert to fraction form
431,048,927.70/646,573,391.55 = 189,184,223.70/x - Step 3: Cross multiply
431,048,927.70x = 646,573,391.55 × 189,184,223.70 - Step 4: Simplify right side
431,048,927.70x = 122,321,485,145,462,880 - Step 5: Solve for x
x = 122,321,485,145,462,880/431,048,927.70 - Step 6: Final answer
x = 283,776,335.55
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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.