Finding the Third Proportional to 129,898,380 and 285,509,400
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Solution
The third proportional to 129,898,380 and 285,509,400 is: 627,533,749.75
Step by Step Solution
- Step 1: Write the proportion equation
129,898,380 : 285,509,400 = 285,509,400 : x - Step 2: Convert to fraction form
129,898,380/285,509,400 = 285,509,400/x - Step 3: Cross multiply
129,898,380x = 285,509,400 × 285,509,400 - Step 4: Simplify right side
129,898,380x = 81,515,617,488,360,000 - Step 5: Solve for x
x = 81,515,617,488,360,000/129,898,380 - Step 6: Final answer
x = 627,533,749.75
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These problems maintain the same ratio (2.20) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.