Finding the Fourth Proportional to 930,883,491.12, 1,395,905,037.42 and 266,745,603.18
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Solution
The fourth proportional to 930,883,491.12, 1,395,905,037.42 and 266,745,603.18 is: 399,997,996.25
Step by Step Solution
- Step 1: Write the proportion equation
930,883,491.12 : 1,395,905,037.42 = 266,745,603.18 : x - Step 2: Convert to fraction form
930,883,491.12/1,395,905,037.42 = 266,745,603.18/x - Step 3: Cross multiply
930,883,491.12x = 1,395,905,037.42 × 266,745,603.18 - Step 4: Simplify right side
930,883,491.12x = 372,351,531,188,598,400 - Step 5: Solve for x
x = 372,351,531,188,598,400/930,883,491.12 - Step 6: Final answer
x = 399,997,996.25
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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.