Finding the Fourth Proportional to 71,362,874.76, 98,475,811.20 and 39,574,684.10
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Solution
The fourth proportional to 71,362,874.76, 98,475,811.20 and 39,574,684.10 is: 54,610,315.70
Step by Step Solution
- Step 1: Write the proportion equation
71,362,874.76 : 98,475,811.20 = 39,574,684.10 : x - Step 2: Convert to fraction form
71,362,874.76/98,475,811.20 = 39,574,684.10/x - Step 3: Cross multiply
71,362,874.76x = 98,475,811.20 × 39,574,684.10 - Step 4: Simplify right side
71,362,874.76x = 3,897,149,119,731,242 - Step 5: Solve for x
x = 3,897,149,119,731,242/71,362,874.76 - Step 6: Final answer
x = 54,610,315.70
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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.