Finding the Fourth Proportional to 652,779,076.40, 900,857,234.58 and 355,432,850.54
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Solution
The fourth proportional to 652,779,076.40, 900,857,234.58 and 355,432,850.54 is: 490,509,371.99
Step by Step Solution
- Step 1: Write the proportion equation
652,779,076.40 : 900,857,234.58 = 355,432,850.54 : x - Step 2: Convert to fraction form
652,779,076.40/900,857,234.58 = 355,432,850.54/x - Step 3: Cross multiply
652,779,076.40x = 900,857,234.58 × 355,432,850.54 - Step 4: Simplify right side
652,779,076.40x = 320,194,254,816,350,912 - Step 5: Solve for x
x = 320,194,254,816,350,912/652,779,076.40 - Step 6: Final answer
x = 490,509,371.99
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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.