Finding the Fourth Proportional to 720,217,602.06, 993,887,335.05 and 406,945,090.08
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Solution
The fourth proportional to 720,217,602.06, 993,887,335.05 and 406,945,090.08 is: 561,576,903.89
Step by Step Solution
- Step 1: Write the proportion equation
720,217,602.06 : 993,887,335.05 = 406,945,090.08 : x - Step 2: Convert to fraction form
720,217,602.06/993,887,335.05 = 406,945,090.08/x - Step 3: Cross multiply
720,217,602.06x = 993,887,335.05 × 406,945,090.08 - Step 4: Simplify right side
720,217,602.06x = 404,457,571,091,293,376 - Step 5: Solve for x
x = 404,457,571,091,293,376/720,217,602.06 - Step 6: Final answer
x = 561,576,903.89
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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.