Finding the Fourth Proportional to 256,408,810.24, 353,844,468.48 and 138,934,048
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Solution
The fourth proportional to 256,408,810.24, 353,844,468.48 and 138,934,048 is: 191,729,154.40
Step by Step Solution
- Step 1: Write the proportion equation
256,408,810.24 : 353,844,468.48 = 138,934,048 : x - Step 2: Convert to fraction form
256,408,810.24/353,844,468.48 = 138,934,048/x - Step 3: Cross multiply
256,408,810.24x = 353,844,468.48 × 138,934,048 - Step 4: Simplify right side
256,408,810.24x = 49,161,044,368,334,808 - Step 5: Solve for x
x = 49,161,044,368,334,808/256,408,810.24 - Step 6: Final answer
x = 191,729,154.40
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1.5x scale
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.