Finding the Fourth Proportional to 212,785,149.60, 318,715,830 and 130,654,726.56
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Solution
The fourth proportional to 212,785,149.60, 318,715,830 and 130,654,726.56 is: 195,698,476.60
Step by Step Solution
- Step 1: Write the proportion equation
212,785,149.60 : 318,715,830 = 130,654,726.56 : x - Step 2: Convert to fraction form
212,785,149.60/318,715,830 = 130,654,726.56/x - Step 3: Cross multiply
212,785,149.60x = 318,715,830 × 130,654,726.56 - Step 4: Simplify right side
212,785,149.60x = 41,641,729,618,993,448 - Step 5: Solve for x
x = 41,641,729,618,993,448/212,785,149.60 - Step 6: Final answer
x = 195,698,476.60
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.