Finding the Fourth Proportional to 38,585,430.60, 53,245,938.74 and 22,905,125.32
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Solution
The fourth proportional to 38,585,430.60, 53,245,938.74 and 22,905,125.32 is: 31,607,912.12
Step by Step Solution
- Step 1: Write the proportion equation
38,585,430.60 : 53,245,938.74 = 22,905,125.32 : x - Step 2: Convert to fraction form
38,585,430.60/53,245,938.74 = 22,905,125.32/x - Step 3: Cross multiply
38,585,430.60x = 53,245,938.74 × 22,905,125.32 - Step 4: Simplify right side
38,585,430.60x = 1,219,604,899,620,743 - Step 5: Solve for x
x = 1,219,604,899,620,743/38,585,430.60 - Step 6: Final answer
x = 31,607,912.12
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.