Finding the Fourth Proportional to 153,418,416.24, 229,865,659.56 and 84,388,963.44
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Solution
The fourth proportional to 153,418,416.24, 229,865,659.56 and 84,388,963.44 is: 126,439,349.43
Step by Step Solution
- Step 1: Write the proportion equation
153,418,416.24 : 229,865,659.56 = 84,388,963.44 : x - Step 2: Convert to fraction form
153,418,416.24/229,865,659.56 = 84,388,963.44/x - Step 3: Cross multiply
153,418,416.24x = 229,865,659.56 × 84,388,963.44 - Step 4: Simplify right side
153,418,416.24x = 19,398,124,740,720,328 - Step 5: Solve for x
x = 19,398,124,740,720,328/153,418,416.24 - Step 6: Final answer
x = 126,439,349.43
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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.