Finding the Fourth Proportional to 15,569,655.18, 21,299,398.62 and 15,504,076.95
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Solution
The fourth proportional to 15,569,655.18, 21,299,398.62 and 15,504,076.95 is: 21,209,687.14
Step by Step Solution
- Step 1: Write the proportion equation
15,569,655.18 : 21,299,398.62 = 15,504,076.95 : x - Step 2: Convert to fraction form
15,569,655.18/21,299,398.62 = 15,504,076.95/x - Step 3: Cross multiply
15,569,655.18x = 21,299,398.62 × 15,504,076.95 - Step 4: Simplify right side
15,569,655.18x = 330,227,515,193,203.81 - Step 5: Solve for x
x = 330,227,515,193,203.81/15,569,655.18 - Step 6: Final answer
x = 21,209,687.14
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Why These Related Problems?
These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.