Finding the Fourth Proportional to 54,808,958.18, 75,626,749.09 and 31,276,750.70
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Solution
The fourth proportional to 54,808,958.18, 75,626,749.09 and 31,276,750.70 is: 43,156,430.19
Step by Step Solution
- Step 1: Write the proportion equation
54,808,958.18 : 75,626,749.09 = 31,276,750.70 : x - Step 2: Convert to fraction form
54,808,958.18/75,626,749.09 = 31,276,750.70/x - Step 3: Cross multiply
54,808,958.18x = 75,626,749.09 × 31,276,750.70 - Step 4: Simplify right side
54,808,958.18x = 2,365,358,977,539,382 - Step 5: Solve for x
x = 2,365,358,977,539,382/54,808,958.18 - Step 6: Final answer
x = 43,156,430.19
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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.