Finding the Fourth Proportional to 5,088,147,549.48, 7,021,542,921.75 and 2,830,038,502.05
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Solution
The fourth proportional to 5,088,147,549.48, 7,021,542,921.75 and 2,830,038,502.05 is: 3,905,397,125.20
Step by Step Solution
- Step 1: Write the proportion equation
5,088,147,549.48 : 7,021,542,921.75 = 2,830,038,502.05 : x - Step 2: Convert to fraction form
5,088,147,549.48/7,021,542,921.75 = 2,830,038,502.05/x - Step 3: Cross multiply
5,088,147,549.48x = 7,021,542,921.75 × 2,830,038,502.05 - Step 4: Simplify right side
5,088,147,549.48x = 19,871,236,812,349,153,280 - Step 5: Solve for x
x = 19,871,236,812,349,153,280/5,088,147,549.48 - Step 6: Final answer
x = 3,905,397,125.20
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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.