Finding the Fourth Proportional to 1,090,147,220.05, 1,635,220,830.08 and 1,005,966,965.65
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Solution
The fourth proportional to 1,090,147,220.05, 1,635,220,830.08 and 1,005,966,965.65 is: 1,508,950,448.48
Step by Step Solution
- Step 1: Write the proportion equation
1,090,147,220.05 : 1,635,220,830.08 = 1,005,966,965.65 : x - Step 2: Convert to fraction form
1,090,147,220.05/1,635,220,830.08 = 1,005,966,965.65/x - Step 3: Cross multiply
1,090,147,220.05x = 1,635,220,830.08 × 1,005,966,965.65 - Step 4: Simplify right side
1,090,147,220.05x = 1,644,978,136,603,251,712 - Step 5: Solve for x
x = 1,644,978,136,603,251,712/1,090,147,220.05 - Step 6: Final answer
x = 1,508,950,448.48
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Double scale
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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.