Finding the Fourth Proportional to 664,606,492.80, 996,909,739.20 and 446,928,259.20
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Solution
The fourth proportional to 664,606,492.80, 996,909,739.20 and 446,928,259.20 is: 670,392,388.80
Step by Step Solution
- Step 1: Write the proportion equation
664,606,492.80 : 996,909,739.20 = 446,928,259.20 : x - Step 2: Convert to fraction form
664,606,492.80/996,909,739.20 = 446,928,259.20/x - Step 3: Cross multiply
664,606,492.80x = 996,909,739.20 × 446,928,259.20 - Step 4: Simplify right side
664,606,492.80x = 445,547,134,320,182,016 - Step 5: Solve for x
x = 445,547,134,320,182,016/664,606,492.80 - Step 6: Final answer
x = 670,392,388.80
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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.