Finding the Fourth Proportional to 57,768,125.60, 86,631,193.20 and 19,430,890.40
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Solution
The fourth proportional to 57,768,125.60, 86,631,193.20 and 19,430,890.40 is: 29,139,273.65
Step by Step Solution
- Step 1: Write the proportion equation
57,768,125.60 : 86,631,193.20 = 19,430,890.40 : x - Step 2: Convert to fraction form
57,768,125.60/86,631,193.20 = 19,430,890.40/x - Step 3: Cross multiply
57,768,125.60x = 86,631,193.20 × 19,430,890.40 - Step 4: Simplify right side
57,768,125.60x = 1,683,321,220,290,425.25 - Step 5: Solve for x
x = 1,683,321,220,290,425.25/57,768,125.60 - Step 6: Final answer
x = 29,139,273.65
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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.