Finding the Fourth Proportional to 248,212,158.81, 372,059,603.58 and 138,877,030.41
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Solution
The fourth proportional to 248,212,158.81, 372,059,603.58 and 138,877,030.41 is: 208,170,837.11
Step by Step Solution
- Step 1: Write the proportion equation
248,212,158.81 : 372,059,603.58 = 138,877,030.41 : x - Step 2: Convert to fraction form
248,212,158.81/372,059,603.58 = 138,877,030.41/x - Step 3: Cross multiply
248,212,158.81x = 372,059,603.58 × 138,877,030.41 - Step 4: Simplify right side
248,212,158.81x = 51,670,532,880,712,200 - Step 5: Solve for x
x = 51,670,532,880,712,200/248,212,158.81 - Step 6: Final answer
x = 208,170,837.11
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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.