Finding the Fourth Proportional to 291,347,603.70, 437,021,405.55 and 291,347,603.70
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Solution
The fourth proportional to 291,347,603.70, 437,021,405.55 and 291,347,603.70 is: 437,021,405.55
Step by Step Solution
- Step 1: Write the proportion equation
291,347,603.70 : 437,021,405.55 = 291,347,603.70 : x - Step 2: Convert to fraction form
291,347,603.70/437,021,405.55 = 291,347,603.70/x - Step 3: Cross multiply
291,347,603.70x = 437,021,405.55 × 291,347,603.70 - Step 4: Simplify right side
291,347,603.70x = 127,325,139,272,598,384 - Step 5: Solve for x
x = 127,325,139,272,598,384/291,347,603.70 - Step 6: Final answer
x = 437,021,405.55
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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.