Finding the Fourth Proportional to 83,698,398.41, 125,550,107.19 and 69,238,220.94
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Solution
The fourth proportional to 83,698,398.41, 125,550,107.19 and 69,238,220.94 is: 103,859,407.42
Step by Step Solution
- Step 1: Write the proportion equation
83,698,398.41 : 125,550,107.19 = 69,238,220.94 : x - Step 2: Convert to fraction form
83,698,398.41/125,550,107.19 = 69,238,220.94/x - Step 3: Cross multiply
83,698,398.41x = 125,550,107.19 × 69,238,220.94 - Step 4: Simplify right side
83,698,398.41x = 8,692,866,060,661,902 - Step 5: Solve for x
x = 8,692,866,060,661,902/83,698,398.41 - Step 6: Final answer
x = 103,859,407.42
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.