Finding the Fourth Proportional to 890,252,474.40, 1,334,756,631.60 and 526,559,623.20
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Solution
The fourth proportional to 890,252,474.40, 1,334,756,631.60 and 526,559,623.20 is: 789,471,491.75
Step by Step Solution
- Step 1: Write the proportion equation
890,252,474.40 : 1,334,756,631.60 = 526,559,623.20 : x - Step 2: Convert to fraction form
890,252,474.40/1,334,756,631.60 = 526,559,623.20/x - Step 3: Cross multiply
890,252,474.40x = 1,334,756,631.60 × 526,559,623.20 - Step 4: Simplify right side
890,252,474.40x = 702,828,948,998,997,120 - Step 5: Solve for x
x = 702,828,948,998,997,120/890,252,474.40 - Step 6: Final answer
x = 789,471,491.75
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1.5x scale
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.