Finding the Fourth Proportional to 90,709,104.30, 125,174,957.88 and 53,551,353.74
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Solution
The fourth proportional to 90,709,104.30, 125,174,957.88 and 53,551,353.74 is: 73,898,739.28
Step by Step Solution
- Step 1: Write the proportion equation
90,709,104.30 : 125,174,957.88 = 53,551,353.74 : x - Step 2: Convert to fraction form
90,709,104.30/125,174,957.88 = 53,551,353.74/x - Step 3: Cross multiply
90,709,104.30x = 125,174,957.88 × 53,551,353.74 - Step 4: Simplify right side
90,709,104.30x = 6,703,288,448,821,480 - Step 5: Solve for x
x = 6,703,288,448,821,480/90,709,104.30 - Step 6: Final answer
x = 73,898,739.28
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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.