Finding the Fourth Proportional to 412,393,648.14, 618,181,871.58 and 193,652,421.84
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Solution
The fourth proportional to 412,393,648.14, 618,181,871.58 and 193,652,421.84 is: 290,286,761.47
Step by Step Solution
- Step 1: Write the proportion equation
412,393,648.14 : 618,181,871.58 = 193,652,421.84 : x - Step 2: Convert to fraction form
412,393,648.14/618,181,871.58 = 193,652,421.84/x - Step 3: Cross multiply
412,393,648.14x = 618,181,871.58 × 193,652,421.84 - Step 4: Simplify right side
412,393,648.14x = 119,712,416,569,050,880 - Step 5: Solve for x
x = 119,712,416,569,050,880/412,393,648.14 - Step 6: Final answer
x = 290,286,761.47
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.