Finding the Fourth Proportional to 309,709,119.66, 427,409,862.87 and 168,573,523.42
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Solution
The fourth proportional to 309,709,119.66, 427,409,862.87 and 168,573,523.42 is: 232,637,600.75
Step by Step Solution
- Step 1: Write the proportion equation
309,709,119.66 : 427,409,862.87 = 168,573,523.42 : x - Step 2: Convert to fraction form
309,709,119.66/427,409,862.87 = 168,573,523.42/x - Step 3: Cross multiply
309,709,119.66x = 427,409,862.87 × 168,573,523.42 - Step 4: Simplify right side
309,709,119.66x = 72,049,986,528,454,928 - Step 5: Solve for x
x = 72,049,986,528,454,928/309,709,119.66 - Step 6: Final answer
x = 232,637,600.75
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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.