Finding the Fourth Proportional to 86,250,377.16, 128,982,605.58 and 64,406,096.28
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Solution
The fourth proportional to 86,250,377.16, 128,982,605.58 and 64,406,096.28 is: 96,315,707.68
Step by Step Solution
- Step 1: Write the proportion equation
86,250,377.16 : 128,982,605.58 = 64,406,096.28 : x - Step 2: Convert to fraction form
86,250,377.16/128,982,605.58 = 64,406,096.28/x - Step 3: Cross multiply
86,250,377.16x = 128,982,605.58 × 64,406,096.28 - Step 4: Simplify right side
86,250,377.16x = 8,307,266,113,430,745 - Step 5: Solve for x
x = 8,307,266,113,430,745/86,250,377.16 - Step 6: Final answer
x = 96,315,707.68
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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.