Finding the Fourth Proportional to 117,422,447.30, 176,133,670.95 and 86,811,445.70
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Solution
The fourth proportional to 117,422,447.30, 176,133,670.95 and 86,811,445.70 is: 130,217,168.55
Step by Step Solution
- Step 1: Write the proportion equation
117,422,447.30 : 176,133,670.95 = 86,811,445.70 : x - Step 2: Convert to fraction form
117,422,447.30/176,133,670.95 = 86,811,445.70/x - Step 3: Cross multiply
117,422,447.30x = 176,133,670.95 × 86,811,445.70 - Step 4: Simplify right side
117,422,447.30x = 15,290,418,611,617,592 - Step 5: Solve for x
x = 15,290,418,611,617,592/117,422,447.30 - Step 6: Final answer
x = 130,217,168.55
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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.