Finding the Fourth Proportional to 54,128,540.70, 81,192,811.05 and 25,430,726.70
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Solution
The fourth proportional to 54,128,540.70, 81,192,811.05 and 25,430,726.70 is: 38,146,090.05
Step by Step Solution
- Step 1: Write the proportion equation
54,128,540.70 : 81,192,811.05 = 25,430,726.70 : x - Step 2: Convert to fraction form
54,128,540.70/81,192,811.05 = 25,430,726.70/x - Step 3: Cross multiply
54,128,540.70x = 81,192,811.05 × 25,430,726.70 - Step 4: Simplify right side
54,128,540.70x = 2,064,792,187,817,290 - Step 5: Solve for x
x = 2,064,792,187,817,290/54,128,540.70 - Step 6: Final answer
x = 38,146,090.05
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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.