Finding the Fourth Proportional to 90,640,195.70, 125,083,487.99 and 49,387,088.07
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Solution
The fourth proportional to 90,640,195.70, 125,083,487.99 and 49,387,088.07 is: 68,154,191.31
Step by Step Solution
- Step 1: Write the proportion equation
90,640,195.70 : 125,083,487.99 = 49,387,088.07 : x - Step 2: Convert to fraction form
90,640,195.70/125,083,487.99 = 49,387,088.07/x - Step 3: Cross multiply
90,640,195.70x = 125,083,487.99 × 49,387,088.07 - Step 4: Simplify right side
90,640,195.70x = 6,177,509,237,588,385 - Step 5: Solve for x
x = 6,177,509,237,588,385/90,640,195.70 - Step 6: Final answer
x = 68,154,191.31
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.