Finding the Fourth Proportional to 855,213,266.60, 1,283,305,178.74 and 461,734,853.21
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Solution
The fourth proportional to 855,213,266.60, 1,283,305,178.74 and 461,734,853.21 is: 692,864,284.81
Step by Step Solution
- Step 1: Write the proportion equation
855,213,266.60 : 1,283,305,178.74 = 461,734,853.21 : x - Step 2: Convert to fraction form
855,213,266.60/1,283,305,178.74 = 461,734,853.21/x - Step 3: Cross multiply
855,213,266.60x = 1,283,305,178.74 × 461,734,853.21 - Step 4: Simplify right side
855,213,266.60x = 592,546,728,321,575,808 - Step 5: Solve for x
x = 592,546,728,321,575,808/855,213,266.60 - Step 6: Final answer
x = 692,864,284.81
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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.