Finding the Fourth Proportional to 247,266,745.90, 341,228,780.80 and 135,764,808.82
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Solution
The fourth proportional to 247,266,745.90, 341,228,780.80 and 135,764,808.82 is: 187,355,804.84
Step by Step Solution
- Step 1: Write the proportion equation
247,266,745.90 : 341,228,780.80 = 135,764,808.82 : x - Step 2: Convert to fraction form
247,266,745.90/341,228,780.80 = 135,764,808.82/x - Step 3: Cross multiply
247,266,745.90x = 341,228,780.80 × 135,764,808.82 - Step 4: Simplify right side
247,266,745.90x = 46,326,860,189,193,688 - Step 5: Solve for x
x = 46,326,860,189,193,688/247,266,745.90 - Step 6: Final answer
x = 187,355,804.84
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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.