Finding the Fourth Proportional to 124,138,300.66, 171,284,645.02 and 71,924,156.80
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Solution
The fourth proportional to 124,138,300.66, 171,284,645.02 and 71,924,156.80 is: 99,240,150.70
Step by Step Solution
- Step 1: Write the proportion equation
124,138,300.66 : 171,284,645.02 = 71,924,156.80 : x - Step 2: Convert to fraction form
124,138,300.66/171,284,645.02 = 71,924,156.80/x - Step 3: Cross multiply
124,138,300.66x = 171,284,645.02 × 71,924,156.80 - Step 4: Simplify right side
124,138,300.66x = 12,319,503,665,242,798 - Step 5: Solve for x
x = 12,319,503,665,242,798/124,138,300.66 - Step 6: Final answer
x = 99,240,150.70
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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.