Finding the Fourth Proportional to 38,109,332.32, 57,135,071.76 and 19,645,380.70
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Solution
The fourth proportional to 38,109,332.32, 57,135,071.76 and 19,645,380.70 is: 29,453,159.31
Step by Step Solution
- Step 1: Write the proportion equation
38,109,332.32 : 57,135,071.76 = 19,645,380.70 : x - Step 2: Convert to fraction form
38,109,332.32/57,135,071.76 = 19,645,380.70/x - Step 3: Cross multiply
38,109,332.32x = 57,135,071.76 × 19,645,380.70 - Step 4: Simplify right side
38,109,332.32x = 1,122,440,236,047,019 - Step 5: Solve for x
x = 1,122,440,236,047,019/38,109,332.32 - Step 6: Final answer
x = 29,453,159.31
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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.