Finding the Fourth Proportional to 915,461,318.89, 1,373,062,684.71 and 293,595,742.09
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Solution
The fourth proportional to 915,461,318.89, 1,373,062,684.71 and 293,595,742.09 is: 440,352,147.63
Step by Step Solution
- Step 1: Write the proportion equation
915,461,318.89 : 1,373,062,684.71 = 293,595,742.09 : x - Step 2: Convert to fraction form
915,461,318.89/1,373,062,684.71 = 293,595,742.09/x - Step 3: Cross multiply
915,461,318.89x = 1,373,062,684.71 × 293,595,742.09 - Step 4: Simplify right side
915,461,318.89x = 403,125,357,846,654,784 - Step 5: Solve for x
x = 403,125,357,846,654,784/915,461,318.89 - Step 6: Final answer
x = 440,352,147.63
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.