Finding the Fourth Proportional to 83,044,603.80, 124,566,905.70 and 78,261,634.80
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Solution
The fourth proportional to 83,044,603.80, 124,566,905.70 and 78,261,634.80 is: 117,392,452.20
Step by Step Solution
- Step 1: Write the proportion equation
83,044,603.80 : 124,566,905.70 = 78,261,634.80 : x - Step 2: Convert to fraction form
83,044,603.80/124,566,905.70 = 78,261,634.80/x - Step 3: Cross multiply
83,044,603.80x = 124,566,905.70 × 78,261,634.80 - Step 4: Simplify right side
83,044,603.80x = 9,748,809,682,059,438 - Step 5: Solve for x
x = 9,748,809,682,059,438/83,044,603.80 - Step 6: Final answer
x = 117,392,452.20
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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.