Finding the Fourth Proportional to 157,465,266.90, 236,197,900.35 and 138,971,120.10
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Solution
The fourth proportional to 157,465,266.90, 236,197,900.35 and 138,971,120.10 is: 208,456,680.15
Step by Step Solution
- Step 1: Write the proportion equation
157,465,266.90 : 236,197,900.35 = 138,971,120.10 : x - Step 2: Convert to fraction form
157,465,266.90/236,197,900.35 = 138,971,120.10/x - Step 3: Cross multiply
157,465,266.90x = 236,197,900.35 × 138,971,120.10 - Step 4: Simplify right side
157,465,266.90x = 32,824,686,776,907,680 - Step 5: Solve for x
x = 32,824,686,776,907,680/157,465,266.90 - Step 6: Final answer
x = 208,456,680.15
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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.