Finding the Fourth Proportional to 155,925,679.05, 215,177,441.22 and 86,311,059.93
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Solution
The fourth proportional to 155,925,679.05, 215,177,441.22 and 86,311,059.93 is: 119,109,264.99
Step by Step Solution
- Step 1: Write the proportion equation
155,925,679.05 : 215,177,441.22 = 86,311,059.93 : x - Step 2: Convert to fraction form
155,925,679.05/215,177,441.22 = 86,311,059.93/x - Step 3: Cross multiply
155,925,679.05x = 215,177,441.22 × 86,311,059.93 - Step 4: Simplify right side
155,925,679.05x = 18,572,193,024,723,472 - Step 5: Solve for x
x = 18,572,193,024,723,472/155,925,679.05 - Step 6: Final answer
x = 119,109,264.99
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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.