Finding the Fourth Proportional to 229,719,079.40, 317,039,130.56 and 130,614,676.18
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Solution
The fourth proportional to 229,719,079.40, 317,039,130.56 and 130,614,676.18 is: 180,263,491.75
Step by Step Solution
- Step 1: Write the proportion equation
229,719,079.40 : 317,039,130.56 = 130,614,676.18 : x - Step 2: Convert to fraction form
229,719,079.40/317,039,130.56 = 130,614,676.18/x - Step 3: Cross multiply
229,719,079.40x = 317,039,130.56 × 130,614,676.18 - Step 4: Simplify right side
229,719,079.40x = 41,409,963,374,483,144 - Step 5: Solve for x
x = 41,409,963,374,483,144/229,719,079.40 - Step 6: Final answer
x = 180,263,491.75
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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.