Finding the Fourth Proportional to 5,731,726.21, 7,909,781.88 and 3,153,351.63
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Solution
The fourth proportional to 5,731,726.21, 7,909,781.88 and 3,153,351.63 is: 4,351,625.09
Step by Step Solution
- Step 1: Write the proportion equation
5,731,726.21 : 7,909,781.88 = 3,153,351.63 : x - Step 2: Convert to fraction form
5,731,726.21/7,909,781.88 = 3,153,351.63/x - Step 3: Cross multiply
5,731,726.21x = 7,909,781.88 × 3,153,351.63 - Step 4: Simplify right side
5,731,726.21x = 24,942,323,584,242.46 - Step 5: Solve for x
x = 24,942,323,584,242.46/5,731,726.21 - Step 6: Final answer
x = 4,351,625.09
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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.