Finding the Fourth Proportional to 190,780,026.70, 286,207,364.85 and 81,604,986.70
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Solution
The fourth proportional to 190,780,026.70, 286,207,364.85 and 81,604,986.70 is: 122,423,445.50
Step by Step Solution
- Step 1: Write the proportion equation
190,780,026.70 : 286,207,364.85 = 81,604,986.70 : x - Step 2: Convert to fraction form
190,780,026.70/286,207,364.85 = 81,604,986.70/x - Step 3: Cross multiply
190,780,026.70x = 286,207,364.85 × 81,604,986.70 - Step 4: Simplify right side
190,780,026.70x = 23,355,948,202,026,300 - Step 5: Solve for x
x = 23,355,948,202,026,300/190,780,026.70 - Step 6: Final answer
x = 122,423,445.50
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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.