Finding the Fourth Proportional to 105,397,461.36, 145,448,475.39 and 58,987,712.70
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Solution
The fourth proportional to 105,397,461.36, 145,448,475.39 and 58,987,712.70 is: 81,403,031.61
Step by Step Solution
- Step 1: Write the proportion equation
105,397,461.36 : 145,448,475.39 = 58,987,712.70 : x - Step 2: Convert to fraction form
105,397,461.36/145,448,475.39 = 58,987,712.70/x - Step 3: Cross multiply
105,397,461.36x = 145,448,475.39 × 58,987,712.70 - Step 4: Simplify right side
105,397,461.36x = 8,579,672,878,958,340 - Step 5: Solve for x
x = 8,579,672,878,958,340/105,397,461.36 - Step 6: Final answer
x = 81,403,031.61
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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.