Finding the Fourth Proportional to 784,584,027.66, 1,082,725,954.11 and 454,750,485.42
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Solution
The fourth proportional to 784,584,027.66, 1,082,725,954.11 and 454,750,485.42 is: 627,555,667.53
Step by Step Solution
- Step 1: Write the proportion equation
784,584,027.66 : 1,082,725,954.11 = 454,750,485.42 : x - Step 2: Convert to fraction form
784,584,027.66/1,082,725,954.11 = 454,750,485.42/x - Step 3: Cross multiply
784,584,027.66x = 1,082,725,954.11 × 454,750,485.42 - Step 4: Simplify right side
784,584,027.66x = 492,370,153,208,355,136 - Step 5: Solve for x
x = 492,370,153,208,355,136/784,584,027.66 - Step 6: Final answer
x = 627,555,667.53
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Double scale
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1.5x scale
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.