Finding the Fourth Proportional to 140,685,515.36, 194,156,781.73 and 88,519,266.80
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Solution
The fourth proportional to 140,685,515.36, 194,156,781.73 and 88,519,266.80 is: 122,163,364.99
Step by Step Solution
- Step 1: Write the proportion equation
140,685,515.36 : 194,156,781.73 = 88,519,266.80 : x - Step 2: Convert to fraction form
140,685,515.36/194,156,781.73 = 88,519,266.80/x - Step 3: Cross multiply
140,685,515.36x = 194,156,781.73 × 88,519,266.80 - Step 4: Simplify right side
140,685,515.36x = 17,186,615,961,795,154 - Step 5: Solve for x
x = 17,186,615,961,795,154/140,685,515.36 - Step 6: Final answer
x = 122,163,364.99
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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.